# Calc4Key vs Picroll

The clearest difference is update cadence: Calc4Key at daily against Picroll's every 2 weeks. Calc4Key also leads on price ($0.99 vs $4.99) and ratings volume (821 vs 67). Picroll's advantage is review sentiment (90% vs 63%) and rating (4.8 vs 4.6). On ads, in-app purchases, monetization model and device support there is nothing between them.

Calc4Key costs $0.99 and Picroll $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Picroll holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Calc4Key has 821 ratings behind it against 67, so its average is the more settled of the two. Written reviews point the same way: 63% of Calc4Key's written reviews are positive against 90% of Picroll's.

Calc4Key ships an update daily, Picroll every 2 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Calc4Key | Picroll |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | [4.6 (821 ratings)](https://appshunter.io/ios/app/calc4key/id1585531759/reviews) | **[4.8 (67 ratings)](https://appshunter.io/ios/app/picroll-tiny-screen-stitcher/id1645275205/reviews)** |
| Number of ratings | **821** | 67 |
| Positive reviews | 62.5% of reviews | **90.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 9 MB | 61 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Khang Le](https://appshunter.io/developer/1078541780) | [TinyWork Apps](https://appshunter.io/developer/1289515980) |

## What reviewers say

### Calc4Key

[App page](https://appshunter.io/ios/app/calc4key/id1585531759)

Perform calculations directly within your keyboard, eliminating the need to switch apps or copy-paste results. This utility allows you to calculate anywhere you type, enhancing productivity and convenience.

**Highlights:** Calculator on keyboard, Calculate anywhere, No app switching, No copy-paste results, Easy keyboard selection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Picroll

[App page](https://appshunter.io/ios/app/picroll-tiny-screen-stitcher/id1645275205)

Effortlessly combine multiple screenshots into a single, long image. Features include automatic stitching, custom layouts, privacy blurring, and phone frame overlays for professional-looking results.

**Highlights:** Auto-stitcher for seamless merging, Tailor-made layouts for perfect results, Picture splitter for social media, Mosaic tool for privacy blurring, Phone frame overlay for realistic look, Intelligent screen clearing, Screenshot editor with text and drawing tools

**In-app purchases:** none


## Frequently asked questions

### Is Calc4Key free?

Calc4Key costs $0.99, with no in-app purchases.

### Is Picroll free?

Picroll costs $4.99, with no in-app purchases.

### Which has better reviews, Calc4Key or Picroll?

Picroll is rated higher. Calc4Key averages 4.6 out of 5 from 821 ratings, while Picroll averages 4.8 from 67 ratings.

### Do Calc4Key or Picroll have ads?

Neither Calc4Key nor Picroll shows ads.

### Which is updated more often, Calc4Key or Picroll?

Calc4Key ships an update daily, and Picroll every 2 weeks. Most recently, Calc4Key was updated on October 8, 2026 and Picroll on October 4, 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.*