# Iodine Code vs Tuta Calendar

The clearest difference is review sentiment: Tuta Calendar at 56% against Iodine Code's 0%. Tuta Calendar also leads on price (Free vs $4.99) and rating (4.6 vs 1.0). Iodine Code's advantage is in-app purchases (none vs 4) and iOS requirement (11.0 vs 16.0). On ads and device support there is nothing between them.

Tuta Calendar is free to download; Iodine Code costs $4.99 up front. Tuta Calendar sells 4 in-app purchases, starting at $3.99 per month. Iodine Code asks for nothing beyond the download.

Tuta Calendar holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Tuta Calendar has 161 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Iodine Code's written reviews are positive against 56% of Tuta Calendar's.

Iodine Code ships an update every 4 months, Tuta Calendar weekly. The most recent releases landed on August 30, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Iodine Code | Tuta Calendar |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [1.0 (3 ratings)](https://appshunter.io/ios/app/iodine-code/id1350643087/reviews) | **[4.6 (161 ratings)](https://appshunter.io/ios/app/tuta-calendar-secure-planner/id6657977811/reviews)** |
| Number of ratings | 3 | **161** |
| Positive reviews | 0.0% of reviews | **56.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 14 MB | 44 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [典 熊](https://appshunter.io/developer/812126908) | [Tutao GmbH](https://appshunter.io/developer/922429608) |

## What reviewers say

### Iodine Code

[App page](https://appshunter.io/ios/app/iodine-code/id1350643087)

A mobile code editor and Git tool that allows you to code, stage, commit, and push directly from your iPhone or iPad. It features syntax highlighting, code suggestions, and a diff viewer for a seamless coding experience.

**Highlights:** Powerful Git tool, Multi-tab code editor, Diff viewer, Project file manager, Syntax highlighting, Code suggestion

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

**In-app purchases:** none


### Tuta Calendar

[App page](https://appshunter.io/ios/app/tuta-calendar-secure-planner/id6657977811)

This secure calendar app offers end-to-end encryption to protect your events and reminders. It features a user-friendly interface, cross-device syncing, and smart reminders, with a free plan and optional premium upgrades.

**Highlights:** Quantum-safe end-to-end encryption, Zero tracking and zero-knowledge architecture, Secure event sharing, Cross-device syncing, Multiple calendar views, Smart event reminders, Offline access

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Revolutionary (Monthly) | $3.99 | per month |
| Legend (Monthly) | $9.99 | per month |
| Revolutionary (Yearly) | $39.99 | per year |
| Legend (Yearly) | $99.99 | per year |

**What reviewers like**

- 🔒 Privacy and security focused
- 👍 Streamlined and minimalist design
- 🔄 Calendar subscriptions work well
- ✨ Good color schemes and views
- ✅ Private alternative to big tech

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- ⚠️ Requires account/login
- 📅 Widget not working/limited
- ❌ No watch app support
- ⏳ Slow loading/reloading events

**Reported bugs**

- App crashes frequently
- Widget is not working or is blank
- Calendar events not saving or changes not saving
- App logs out automatically and shows invalid credentials
- Double reminders for appointments

**Requested features**

- App for the Watch
- Icon shows current date
- Ability to see holidays marked
- Import from Apple calendar
- Adjustable app opening view (e.g., month view)


## Frequently asked questions

### Is Iodine Code free?

Iodine Code costs $4.99, with no in-app purchases.

### Is Tuta Calendar free?

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

### Which has better reviews, Iodine Code or Tuta Calendar?

Tuta Calendar is rated higher. Iodine Code averages 1.0 out of 5 from 3 ratings, while Tuta Calendar averages 4.6 from 161 ratings.

### Do Iodine Code or Tuta Calendar have ads?

Neither Iodine Code nor Tuta Calendar shows ads.

### Which is updated more often, Iodine Code or Tuta Calendar?

Iodine Code ships an update every 4 months, and Tuta Calendar weekly. Most recently, Iodine Code was updated on August 30, 2026 and Tuta Calendar on September 28, 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.*