# Calculator vs Time Notes

The clearest difference is in-app purchases: Time Notes at none against Calculator's 1. Time Notes also leads on ads (none vs shown). Calculator's advantage is device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Calculator sells 1 one-off in-app purchase. Time Notes asks for nothing beyond the download.

Calculator ships an update every 2 months, Time Notes every 3 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Calculator | Time Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (10 ratings)](https://appshunter.io/ios/app/calculator-calcpro/id1321874059/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 9 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideki Ogawa](https://appshunter.io/developer/498921566) | [FENGHUI (HK) HOLDINGS LIMITED](https://appshunter.io/developer/1722133514) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-calcpro/id1321874059)

This utility app allows users to perform calculations and view the formulas used. It offers the ability to edit past calculations and share results via email or memos. An optional purchase can remove advertisements.

**Highlights:** View calculation formulas, Edit past formulas, Share calculations, Ad-free option via purchase, Output to memos or email

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove in-app ads | $2.99 | one-time |


### Time Notes

[App page](https://appshunter.io/ios/app/time-notes-diary-with-lock/id6748808941)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is Time Notes free?

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

### Do Calculator or Time Notes have ads?

Calculator shows ads; Time Notes does not.

### Which is updated more often, Calculator or Time Notes?

Calculator ships an update every 2 months, and Time Notes every 3 months. Most recently, Calculator was updated on September 9, 2026 and Time Notes on September 10, 2026.

---

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