# A2Calc vs Flipper Mobile App

The clearest difference is price: Flipper Mobile App at Free against A2Calc's $6.99. Flipper Mobile App also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (311 vs 10). A2Calc's advantage is review sentiment (94% vs 69%) and rating (4.7 vs 4.5). On ads, in-app purchases and device support there is nothing between them.

Flipper Mobile App is free to download; A2Calc costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A2Calc holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Flipper Mobile App has 311 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 94% of A2Calc's written reviews are positive against 69% of Flipper Mobile App's.

A2Calc ships an update every 3 months, Flipper Mobile App every 3 weeks. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | A2Calc | Flipper Mobile App |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.7 (10 ratings)](https://appshunter.io/ios/app/a2calc/id589583757/reviews)** | [4.5 (311 ratings)](https://appshunter.io/ios/app/flipper-mobile-app/id1534655259/reviews) |
| Number of ratings | 10 | **311** |
| Positive reviews | **93.8% of reviews** | 69.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#180** | — |
| Size | 2 MB | 17 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Farren Domenici](https://appshunter.io/developer/583666476) | [Flipper Devices Inc.](https://appshunter.io/developer/1534655261) |

## What reviewers say

### A2Calc

[App page](https://appshunter.io/ios/app/a2calc/id589583757)

**Currently charting:** #180 Top Paid · Utilities (US App Store)

This app assists locksmiths by automatically calculating pinning charts for A2 SFIC systems. It supports 6 or 7 pin systems and includes features like a randomize function, control finder, and project saving. Projects are encrypted and can be shared via AirPrint or email.

**Highlights:** Automatic pinning chart calculation, Supports 6 or 7 pin systems, Randomize chart generation, Control Finder for lost control keys, Save up to 16 projects, Encrypted and passcode-protected projects, Share projects via AirPrint or email

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

**In-app purchases:** none


### Flipper Mobile App

[App page](https://appshunter.io/ios/app/flipper-mobile-app/id1534655259)

Manage your portable multi-tool device data, organize digital keys, and share them with a community of users. This application enhances the functionality of your device for various geeky projects.

**Highlights:** Manage device data, Organize digital keys, Share keys with users, Community sharing

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for installing and updating Flipper Zero
- 👍 Useful for controlling Flipper Zero remotely
- 🚀 Efficient firmware and app updates
- 👍 Intuitive and user-friendly interface
- 👍 Helpful for managing Flipper Zero files and apps

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🐛 Compatibility issues with custom firmware
- 🐛 App download section not always working
- 🔋 Bluetooth connection can drain phone battery
- 🐛 Difficulty reconnecting after disconnecting

**Reported bugs**

- Firmware update process sometimes causes Bluetooth, SubGHz, or NFC issues
- App crashes when trying to access the App Store section
- Keyboard not showing up when pairing code is requested
- Widgets not working on iOS 16
- Remote control feature has input lag

**Requested features**

- More interactive features (e.g., sleeping dolphin, talking dolphin)
- Ability to download different firmware versions directly in the app
- Support for managing multiple Flipper Zero devices
- Folder support in SubGHz catalog
- Apple Watch companion app


## Frequently asked questions

### Is A2Calc free?

A2Calc costs $6.99, with no in-app purchases.

### Is Flipper Mobile App free?

Flipper Mobile App is free to download, with no in-app purchases.

### Which has better reviews, A2Calc or Flipper Mobile App?

A2Calc is rated higher. A2Calc averages 4.7 out of 5 from 10 ratings, while Flipper Mobile App averages 4.5 from 311 ratings.

### Do A2Calc or Flipper Mobile App have ads?

Neither A2Calc nor Flipper Mobile App shows ads.

### Which is updated more often, A2Calc or Flipper Mobile App?

A2Calc ships an update every 3 months, and Flipper Mobile App every 3 weeks. Most recently, A2Calc was updated on September 30, 2026 and Flipper Mobile App on October 10, 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.*