Programmer Calculator vs SottoPet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Programmer Calculator
This tool assists developers with number base conversions and CRC calculations for strings and hex bytes. Additional features are planned for future updates.
- Number base conversion
- CRC calculation
- String to hex conversion
- Hex byte CRC calculation
- Developer support tool
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Programmer calculator is a tool to support developers to convert numbers between different radix, to calculate CRC of strings or hex bytes. More features is under development and will be delivered in future.
SottoPet
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SottoPet is a companion app for the coding agents running on your Mac. It does not work on its own: you need SottoPet for Mac (macOS 12 or later, Apple Silicon), signed in to the same account, and you pair the two by scanning a QR code shown on the Mac. ■ Read the history Every Claude Code and Codex conversation on the paired Mac, newest first. Each one carries a short topic and its current state — working, waiting, done. Open one and you can read it from the beginning, images included. ■ Reply Conversations you started from this app accept further messages. When an agent has stopped to ask for permission or to put a question to you, you answer by tapping one of its options. ■ Start work Pick one of the folders your Mac already trusts, choose Claude or Codex and a model, and send the first message. ■ Watch the limits How much of your Claude and Codex rate limits is spent, next to the speech allowance on your SottoPet account. Each figure says when it arrived, and one that has not been refreshed for a while is marked as old. ■ What this app deliberately cannot do It cannot send an arbitrary command or a filesystem path to your Mac — the format the two sides speak has no field of that shape. Work can only start in a folder the Mac already trusts, and trust is granted on the Mac alone. Conversations started from the phone run read-only. Pairing does not take effect until someone at the Mac confirms it. Either side can undo it. Accounts are created at sotto.pet. The interface is available in English, Japanese, Korean, Simplified Chinese and Spanish.
Screenshots
Verdict
The clearest difference is in-app purchases: SottoPet at none against Programmer Calculator's 3. Programmer Calculator's advantage is iOS requirement (14.0 vs 16.4). On price, update cadence, ads and device support 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
Both are free to download. Programmer Calculator sells 3 one-off in-app purchases. SottoPet asks for nothing beyond the download.
Programmer Calculator ships an update fortnightly, SottoPet every 8 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.
| Parameter | Programmer Calculator | SottoPet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (32 ratings) — better | — |
| Positive reviews | 42.1% of reviews | — |
| Number of ratings | 32 — better | — |
| Update frequency | Fortnightly | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 5 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | 永超 侯 | Daichi Morita |
In-app purchases
Programmer Calculator
- A coke$0.99
- A cup of coffee$2.99
- A big meal$5.99
SottoPet
No in-app purchases
Questions
Is Programmer Calculator free?
Is SottoPet free?
Do Programmer Calculator or SottoPet have ads?
Which is updated more often, Programmer Calculator or SottoPet?
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