# CompareShots vs Calmo

The clearest difference is price: Calmo at Free against CompareShots's $3.99. Calmo also leads on update cadence (every 3 weeks vs every 11 months) and iOS requirement (14.0 vs 16.6). CompareShots's advantage is ads (none vs shown) and review sentiment (94% vs 75%). On rating, ratings volume, in-app purchases and device support there is nothing between them.

Calmo is free to download; CompareShots costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for CompareShots against 5.0 for Calmo. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews are what separate them: 94% of CompareShots's written reviews are positive against 75% of Calmo's.

CompareShots ships an update every 11 months, Calmo every 3 weeks. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | CompareShots | Calmo |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/compareshots-image-compare/id987237199/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/calmo-easy-to-use-calculator/id1541318864/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | **94.4% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 20 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Space In Box](https://appshunter.io/developer/486967606) | [Hiroki Oka](https://appshunter.io/developer/1464653539) |

## What reviewers say

### CompareShots

[App page](https://appshunter.io/ios/app/compareshots-image-compare/id987237199)

Easily compare two images side-by-side to check for exact matches or subtle differences. Adjust overlay opacity, switch between images with a tap, and even draw directly on the screen for detailed analysis. Share your findings with others.

**Highlights:** Side-by-side image display, Adjustable overlay opacity, Tap to switch images, On-screen drawing tools, Share comparison results

**Features:** macOS Compatibility

**In-app purchases:** none


### Calmo

[App page](https://appshunter.io/ios/app/calmo-easy-to-use-calculator/id1541318864)

This app combines a calculator with note-taking capabilities, allowing users to create formulas, aggregate values, and sum them up. It offers a convenient interface for building tables with easy keyboard navigation and adjustable item positioning.

**Highlights:** Integrated calculator and notes, Formula creation and calculation, Value aggregation and summation, Easy table creation, Keyboard navigation, Adjustable item positioning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CompareShots free?

CompareShots costs $3.99, with no in-app purchases.

### Is Calmo free?

Calmo is free to download, with no in-app purchases.

### Which has better reviews, CompareShots or Calmo?

CompareShots and Calmo are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.

### Do CompareShots or Calmo have ads?

Calmo shows ads; CompareShots does not.

### Which is updated more often, CompareShots or Calmo?

CompareShots ships an update every 11 months, and Calmo every 3 weeks. Most recently, CompareShots was updated on October 24, 2026 and Calmo on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*