# RenjiCalc vs MIT App

The clearest difference is in-app purchases: RenjiCalc at none against MIT App's 2. MIT App's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. MIT App sells 2 one-off in-app purchases. RenjiCalc asks for nothing beyond the download.

RenjiCalc ships an update fortnightly, MIT App every 9 days. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | RenjiCalc | MIT App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 11 MB | 59 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ken hasegawa](https://appshunter.io/developer/1487396483) | [fromKK](https://appshunter.io/developer/445216892) |

## What reviewers say

### RenjiCalc

[App page](https://appshunter.io/ios/app/renjicalcmicro-calc-and-timer/id6758229797)

**In-app purchases:** none


### MIT App

[App page](https://appshunter.io/ios/app/mit-app/id6758517404)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Development | $0.99 | one-time |
| Forgive Past Days | $0.99 | one-time |


## Frequently asked questions

### Is RenjiCalc free?

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

### Is MIT App free?

MIT App is free to download, with in-app purchases available.

### Do RenjiCalc or MIT App have ads?

RenjiCalc shows ads; MIT App does not.

### Which is updated more often, RenjiCalc or MIT App?

RenjiCalc ships an update fortnightly, and MIT App every 9 days. Most recently, RenjiCalc was updated on October 25, 2026 and MIT App on October 11, 2026.

---

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