Comparison

Calcbot 2 vs Solves

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calcbot 2

This app offers a smart calculator with a history tape and expression view to track your calculations. It includes over 500 unit conversions and scientific functions, with an Apple Watch extension for on-the-go use.

Highlights
  • History tape for saved calculations
  • Expression view for typed input
  • Over 500 unit conversions
  • Apple Watch extension
  • Scientific functions in landscape
  • Favorites for instant access
Features
Read full description

Calcbot is an intelligent calculator and unit converter for the rest of us. Featuring an easy-to-read history tape, expression view, intuitive conversion, and much more! History Tape*. Every calculation you enter gets saved to the history tape. Refer to calculations later or send them right back to your current calculation. Expression View. Calcbot's original expression view allows you to see everything you have typed so you'll never forget what you entered or miss a typo. Apple Watch Extension. Perform basic calculations, conversions, calculate tips, and split bills right from your Apple Watch. Conversion*. Convert any of your calculations with over 500 units across 22 different categories including auto-updating currency rates. Favorites. Fave a calculation and get instant access to its result via the Favorites Key. No more cryptic memory keys. Scientific Functions. Rotate your device into landscape mode to gain access to common scientific functions. Constants. Get instant access to scientific constants like Pi, Atomic Mass, or add your own*. Round for Currency. Have all of your results rounded to two decimal places. Sounds & Animations. Beautiful custom animations and sound effects provide positive feedback and an enjoyable experience while performing calculations. * In-App purchase required.

About

Solves

A powerful and versatile calculator for all your Apple devices. Edit complex expressions, sync history across devices, and enjoy a clean, ad-free experience. Unlock advanced features like unit conversion and fraction support with an optional upgrade.

Highlights
  • Edit expressions without limitations
  • Instant results
  • Sync calculation history across devices
  • Unit conversion (currencies, physical units)
  • Fraction support
  • Customizable themes
Features
Read full description

Solves is a well-made calculator app for your iPhone, iPad, Mac, and Apple Watch. It allows you to edit expressions without limitations and get instant results. It keeps your calculation history in sync on all devices and lets you to easily interact with it. All this for free and without ads! By purchasing Solves+ you also get: • Unit Conversions: currencies (with crypto, metals & energy), physical units, and your own! • History Tools: comment, bookmark, export, auto clear, and more • Fractions • More Themes • Advanced Settings Hand-typed code. No generative AI was used during the development or by the app itself. Solves+ requires one payment only. You will own it forever on all devices.

Screenshots

Calcbot 24 screens
Solves4 screens

Verdict

The call

The clearest difference is review sentiment: Solves at 91% against Calcbot 2's 60%. Solves also leads on rating (4.9 vs 4.7) and update cadence (every 3 weeks vs every 2 months). Calcbot 2's advantage is ratings volume (11K vs 381). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calcbot 2 sells 1 one-off in-app purchase and Solves sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Solves holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Calcbot 2 has 11K ratings behind it against 381, so its average is the more settled of the two. Written reviews point the same way: 60% of Calcbot 2's written reviews are positive against 91% of Solves's.

UpkeepUpdate frequency

Calcbot 2 ships an update every 2 months, Solves every 3 weeks. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Calcbot 2 versus Solves: the parameters behind the verdict, then further details
ParameterCalcbot 2Solves
PriceFreeFree
Rating4.7 (11K ratings)4.9 (381 ratings) — better
Positive reviews60.1% of reviews90.6% of reviews — better
Number of ratings11K — better381
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS15.015
Further details — not scored
Size15 MB82 MB
Age rating4+4+
DeveloperTapbotsOleg Barinov

Customer experience

Calcbot 2

All ratings11,114 ratings
Positive92.8%
Neutral2.6%
Negative4.6%
Written reviews652 reviews
Positive60.1%
Neutral8.9%
Negative31.0%

Solves

All ratings381 ratings
Positive97.1%
Neutral1.0%
Negative1.8%
Written reviews480 reviews
Positive90.6%
Neutral3.8%
Negative5.6%

User reviews

Calcbot 2

From 11K App Store ratings

What we love

  • 💻 Flexible calculator & conversions
  • 📝 Comprehensive history tape
  • 🎨 Customizable themes and icons
  • ⌚️ Apple Watch app
  • 🔢 Supports advanced calculations

Room to improve

  • ⚠️ Lack of updates and support
  • 🚫 Removing free features behind paywall
  • 🐞 Bugs and glitches (history tape issues, crashing)
  • 🕰️ Slow loading times
  • 🤔 Unintuitive interface for conversions

Solves

From 381 App Store ratings

What we love

  • 👍 Excellent calculator app
  • 🚀 Smooth and responsive
  • 🔒 No ads or data collection
  • 💡 Useful features like history, comments, and unit conversions
  • 👍 Clean and intuitive design

Room to improve

  • 🐛 Occasional crashes or bugs after updates
  • 🐛 Issues with certain mathematical operations
  • 🐛 Family sharing not working properly
  • 🐛 Lag or performance issues on some devices
  • 💡 Desire for more advanced features like fractions, base conversions

Bugs and requests

Calcbot 2

Reported bugs

4 issues
  • History tape not recording all calculations
  • Conversion settings not syncing to Apple Watch
  • App crashing on launch for some users
  • Blank app icons after iOS updates

Requested features

5 requests
  • Dark mode option
  • Widgets for quick access
  • More currency and unit conversions
  • Improved Apple Watch integration
  • Ability to edit calculations in history tape

Solves

Reported bugs

4 issues
  • Crashes when pressing certain buttons
  • Issues with parsing complex expressions
  • Incorrect results for some calculations
  • Problems with history clearing or syncing

Requested features

6 requests
  • Add support for fractions and mixed numbers
  • Implement a widget for quick access
  • Allow resizing the app window on Mac
  • Provide more customization options
  • Add support for Apple Watch
Show 1 more
  • Improve unit conversion experience

In-app purchases

1 purchases

Calcbot 2

One-time1
  • Calcbot Pro$1.99
6 purchases

Solves

One-time6
  • Tip Option #1$0.99
  • Tip Option #2$1.99
  • Tip Option #3$4.99
Show 3 more
  • Tip Option #4$9.99
  • Solves+$9.99
  • Tip Option #5$19.99

Questions

Is Calcbot 2 free?
Calcbot 2 is free to download, with in-app purchases available.
Is Solves free?
Solves is free to download, with in-app purchases available.
Which has better reviews, Calcbot 2 or Solves?
Solves is rated higher. Calcbot 2 averages 4.7 out of 5 from 11K ratings, while Solves averages 4.9 from 381 ratings.
Do Calcbot 2 or Solves have ads?
Neither Calcbot 2 nor Solves shows ads.
Which is updated more often, Calcbot 2 or Solves?
Calcbot 2 ships an update every 2 months, and Solves every 3 weeks. Most recently, Calcbot 2 was updated on September 29, 2026 and Solves on September 28, 2026.

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