Google Ads is the best search advertising software for most advertisers, because it reaches the largest search audience and charges only when a searcher clicks. Microsoft Advertising is the best second engine, because it imports Google Ads campaigns and lists a minimum keyword bid of $0.05, while its smaller audience means it works as an add-on. Semrush is the best research pick at $139 per month, while SpyFu is the cheapest research pick at $39 per month.
Search advertising has two separate costs: the click, set by an auction for each search, and the tool, set by a subscription, a spend tier, or both. A low tool price can hide a high click price. Match the tool to your monthly spend, your account count, and the channels you run.
On this page
Best search advertising software: comparison table
Swipe the table sideways on a phone to see every column.
| # | Name | Best for | Starting price | Free plan / trial | Link |
|---|---|---|---|---|---|
| 1 | Google Ads | Capturing search demand on Google | No fixed price, charged per click, no… | No | Visit |
| 2 | Microsoft Advertising | Cheaper clicks beyond Google | No fixed price, charged per click, minimum… | No | Visit |
| 3 | Semrush | Keyword and competitor research | $139 per month | Yes | Visit |
| 4 | Optmyzr | Agency automation across channels | $209 per month | Free trial (14 days) | Visit |
| 5 | Adalysis | Ad testing and account audits | $149 per month | Free trial (30 days) | Visit |
| 6 | Opteo | One-click Google Ads improvements | $129 per month | Free trial (14 days) | Visit |
| 7 | SpyFu | Competitor keyword history on a budget | $39 per month | No | Visit |
| 8 | Skai | Enterprise search across many publishers | $114,000 per year | No | Visit |
The 8 best best search advertising software tools, in detail
Google Ads
Best for: Capturing search demand on Google
Google Ads is the place where most search advertising starts, because it puts text ads, Shopping ads, and Performance Max campaigns in front of people who have already typed what they want. You set an average daily budget, and Google can spend up to twice that amount on a single day, while the monthly total stays within about 30.4 times the daily budget. There is no charge to open an account and no minimum spend.
- WordStream by LocaliQ puts the 2026 average search click at $5.42 across industries, with arts and entertainment near $1.63 and legal services near $9
- Use Keyword Planner before you set a budget and set conversion tracking first.
- Choose Google Ads if search is your main channel, and add a management tool from this list if you run many accounts.
Pros
- Largest search audience
- no minimum spend
- Smart Bidding and Keyword Planner included in the account
Cons
- Click prices vary by auction and can rise fast in legal and home services
- monthly spend can reach 30.4 times the daily budget on busy days
Microsoft Advertising
Best for: Cheaper clicks beyond Google
Microsoft Advertising shows search ads on Bing, Yahoo, DuckDuckGo, and other partners, and it also places ads inside Copilot. It has no account minimum and no setup fee, and for United States accounts it lists a minimum keyword bid of $0.05, a minimum daily budget of $0.05, and a minimum monthly budget of $5. You set bids and daily budgets, then you are charged per click.
- The main value is the import tool, which copies Google Ads campaigns, keywords, ads, and bids into Microsoft Advertising and can repeat on a daily, we
- Microsoft states that advertisers can get 19 percent lower click prices than a leading ad platform, based on an eMarketer first quarter 2026 forecast.
- One limit: volume is far lower than Google, so treat it as a second engine, not as a replacement.
Pros
- Imports Google Ads campaigns
- minimum keyword bid of $0.05
- reaches Bing, Yahoo, and DuckDuckGo searchers
Cons
- Search volume is far smaller than Google
- Microsoft does not publish average click prices, so you must forecast your own keywords
Semrush
Best for: Keyword and competitor research
Semrush is a research suite first and a search advertising helper second. Its SEO plan costs $139 per month, or $117.33 per month when billed annually, and covers 5 websites and 500 keywords tracked daily, with keyword research, competitor analysis, Position Tracking, and Site Audit. Starter costs $199 per month, or $165.17 per month billed annually, and adds 50 prompts to track daily in AI search.
- Pro+ costs $299 per month, or $248.17 per month billed annually, and covers 15 websites and 1,500 keywords tracked daily.
- Advanced is custom priced and covers 40 or more websites and 5,000 or more keywords daily.
- Use Semrush to find the keywords your rivals bid on.
- The free account gives 1 demo project and 10 reports per day.
Pros
- Free account with limited access
- SEO plan covers 5 websites and 500 keywords tracked daily
- 7-day free trial on the SEO, Starter, and Pro+ plans
Cons
- Extra users start at $45 per month each
- API access is on the Advanced plan, which is custom priced
Optmyzr
Best for: Agency automation across channels
Optmyzr manages Google Ads, Microsoft Ads, Amazon Ads, Meta Ads, LinkedIn Ads, and Yahoo Japan Ads. Essentials starts at $209 per month billed annually, or $299 per month billed monthly, for up to $25,000 in monthly ad spend. Premium starts at $272 per month billed annually, or $389 per month billed monthly, for the same spend level.
- At up to $500,000 in monthly ad spend, Premium reaches $629 per month billed annually.
- Above $500,000, Enterprise is priced on request.
- The billing detail that changes the choice is the spend count.
- From 1 June 2026, Meta and LinkedIn spend counts toward the total ad spend that sets the Optmyzr price, so an agency that adds social spend can cross
Pros
- 14-day free trial with no credit card required
- no per-seat charges
- Rule Engine, reporting, and account audits on all plans
Cons
- Price rises with monthly ad spend, so a growing account moves up a tier
- Essentials stops at 25 accounts, then extra accounts cost $5 per month each
Adalysis
Best for: Ad testing and account audits
Adalysis is a PPC copilot for auditing, monitoring, optimizing, and automating campaigns. Its price starts at $149 per month for up to $50,000 in maximum monthly ad spend, with a 10 percent discount on six-month billing and a 15 percent discount on annual billing, which brings the entry price to $126 per month billed annually. At $150,000 in ad spend the price is $249 per month.
- At $500,000 it is $599 per month.
- Above $5,000,000 in ad spend, no price is listed.
- Every tier includes unlimited Google Ads accounts, unlimited Microsoft Ads accounts, and unlimited users, plus 100 or more prebuilt audit checks, Qual
- The system adjusts the subscription each month if spend crosses a tier line, and it sends an email four days before an upgrade.
Pros
- 30-day free trial on the entry tier
- unlimited Google Ads accounts, Microsoft Ads accounts, and users
- all features included on every tier
Cons
- Covers Google Ads and Microsoft Ads only, with no social channels
- price is set by managed ad spend, so it rises as spend grows
Opteo
Best for: One-click Google Ads improvements
Opteo gives Google Ads managers a list of improvements, each with a reason, that they can review and push live to the account. Basic costs $129 per month for 10 accounts and up to $25,000 in monthly spend, with live chat support and a 24-hour refresh cycle. Professional costs $249 per month for 25 accounts and up to $100,000 in monthly spend, with priority support and a 12-hour refresh cycle.
- Agency costs $499 per month for 75 accounts and up to $250,000 in monthly spend.
- Enterprise is custom priced.
- Yearly billing gives a two-month discount.
- Opteo covers performance monitoring, budget management, alerts, custom reports, and Shopping improvements.
Pros
- 14-day free trial
- improvements can be pushed live to Google Ads in one click
- live chat support on the Basic plan
Cons
- Current product covers Google Ads only
- Basic refreshes data every 24 hours, while Professional and Agency refresh every 12 hours
SpyFu
Best for: Competitor keyword history on a budget
SpyFu shows the keywords rivals buy, the ads they run, and their search history. Basic costs $39 per month, or $29 per month billed annually, for 1 user, 5,000 tracked keywords, and 1 connected site. Pro + AI costs $119 per month after the first month, or $89 per month billed annually, with a $59 first month offer, 10 projects, and 15,000 tracked keywords.
- Team and Agency costs $249 per month, or $187 per month billed annually, for 5 users and 50,000 tracked keywords.
- The Basic cap is the number to check before you buy.
- It limits search results, competitor results, keyword groups, domain comparisons, and exports to 10,000 rows each, while Pro + AI and Team remove that
- SpyFu also offers a 30-day money-back guarantee, requested from support.
Pros
- Basic plan tracks 5,000 keywords and covers 1 connected site
- Pro + AI adds API access and $40 in included API credits
- 30-day money-back guarantee on every plan
Cons
- Basic limits search results and exports to 10,000 rows
- no free plan, and extra user seats cost $15 per month on Basic and $30 per month on higher plans
Skai
Best for: Enterprise search across many publishers
Skai, formerly Kenshoo, is an enterprise platform for search, social, and retail media. Its published pricing page lists Standard at $114,000 per year for up to $4,000,000 per year, Advanced at $276,000 per year for up to $10,000,000, Enterprise at $504,000 per year for up to $20,000,000, and Enterprise Premier at $756,000 per year for up to $35,000,000. Above $35,000,000, pricing is custom.
- The price is a flat annual fee, with a review of the commitment after the first three months.
- Standard includes access to 120 or more publishers, automation, online training, dedicated client success support, and Celeste AI.
- Advanced adds Competitive Insights and Search Term Analysis.
- Choose Skai only if annual ad spend is in the millions.
Pros
- Published rate card at every tier
- covers 120 or more publishers
- Celeste AI is included in every tier
Cons
- Standard tier starts at $114,000 per year, which locks out small teams
- no free plan and no free trial
How we chose
We chose tools that run search advertising on Google or Microsoft, or that manage, audit, research, or optimize those campaigns, with a published price or a clear no-minimum model on an official page opened on 2026-11-12. We did not test any tool hands-on. We did not use customer counts or awards to rank items. The unique angle is the billing detail that changes the total: Optmyzr counts Meta and LinkedIn spend toward its price from 1 June 2026, Adalysis adjusts its subscription each month when spend crosses a tier, and Skai publishes a full rate card.
Pick by monthly ad spend and team size
| Monthly ad spend | Team shape | Best fit | Starting tool cost |
|---|---|---|---|
| Under $5,000 | One advertiser | Google Ads plus SpyFu | $39 per month for SpyFu, plus click costs |
| $5,000 to $25,000 | Small team | Google Ads plus Opteo or Adalysis | $129 per month for Opteo, $149 per month for Adalysis |
| $25,000 to $100,000 | Agency, up to 25 accounts | Optmyzr Essentials or Opteo Professional | $209 per month billed annually for Optmyzr, $249 per month for Opteo |
| $100,000 to $500,000 | Agency, many accounts | Optmyzr Premium or Adalysis at $500,000 spend | $272 to $629 per month billed annually for Optmyzr, $599 per month for Adalysis |
| Over $333,000 per month | Enterprise | Skai Standard | $114,000 per year, or $9,500 per month |
Frequently asked questions
What is the best search advertising software for most advertisers?
Google Ads is the best pick for most advertisers, because it reaches the largest search audience and charges only when a searcher clicks, with no minimum spend. Add Microsoft Advertising as a second engine for cheaper clicks, and add Opteo at $129 per month or Adalysis at $149 per month for guided improvements and ad testing.
How much does search advertising software cost?
The engines charge per click with no fixed price, while the management tools start at $39 per month for SpyFu, $129 per month for Opteo, $139 per month for Semrush, $149 per month for Adalysis, and $209 per month billed annually for Optmyzr. Skai Standard is $114,000 per year. Your total is the tool subscription plus the click costs, which vary by keyword and auction.
Which tool is best for a small budget?
SpyFu at $39 per month is the best research pick for a small budget, because it shows competitor keywords and ad history for $29 per month billed annually. For campaign management, Opteo at $129 per month is the lowest entry price here. Start with Google Ads alone if the budget is under $5,000 per month.
Which tool is best for an agency?
Optmyzr is the best agency pick, because Essentials covers up to 25 accounts with no per-seat charges, and Premium adds unlimited accounts within fair use. Adalysis is a strong second pick for Google and Microsoft agencies, because every tier includes unlimited accounts and users. Check the spend tier first, because Optmyzr counts Meta and LinkedIn spend toward its price from 1 June 2026.
Do I need Semrush and SpyFu, or is one enough?
One is enough for most buyers. Semrush at $139 per month covers keyword research, competitor analysis, site audits, and AI search tracking across 5 websites and 500 keywords daily. SpyFu at $39 per month covers competitor keyword history at a lower price, but with a 10,000 row cap on Basic. Choose Semrush for wider research, and SpyFu when competitor history is the only research job.
Is Skai worth $114,000 per year?
Skai is worth that price only for an enterprise advertiser spending up to $4,000,000 per year, because the flat annual fee then works out to about 2.85 percent of the spend at the top of the tier, and it covers 120 or more publishers in one platform. For a smaller advertiser, the same money buys years of the other tools here combined, so Skai is not a sensible pick below enterprise spend.
Sources
- https://ads.google.com/
- https://ads.microsoft.com/
- https://www.semrush.com/
- https://www.semrush.com/pricing/
- https://www.optmyzr.com/
- https://www.optmyzr.com/pricing/
- https://adalysis.com/
- https://adalysis.com/pricing/
- https://opteo.com/
- https://opteo.com/pricing
- https://www.spyfu.com/
- https://www.spyfu.com/pricing
- https://skai.io/
- https://skai.io/pricing/
Prices and features were read on each company’s own website in November 2026. They change often, so confirm the current offer on the official site before you sign up or buy.