# DDays vs Ditto

The clearest difference is ads: DDays at none against Ditto's shown. DDays also leads on review sentiment (100% vs 67%) and monetization model (free vs ad-supported). Ditto's advantage is update cadence (every 3 days vs every 2 weeks) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DDays ships an update every 2 weeks, Ditto every 3 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | DDays | Ditto |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 5 MB | 24 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lee Jaeho](https://appshunter.io/developer/1556252425) | [minjae jung](https://appshunter.io/developer/1838270174) |

## What reviewers say

### DDays

[App page](https://appshunter.io/ios/app/ddays/id6469691671)

Track important upcoming events with timely notifications. View countdowns directly on your home screen and lock screen widgets.

**Highlights:** D-day tracking, Advance notifications, Home screen widget, Lock screen widget, Live activity display

**In-app purchases:** none


### Ditto

[App page](https://appshunter.io/ios/app/dittominimalist-study-planner/id6759214254)

This minimalist study planner helps users focus on their progress with a clean Black & White aesthetic. It features a smart timer, automatic logging to a 10-minute grid timetable, a structured to-do list, and data analytics to understand study patterns. It operates fully offline, making it ideal for distraction-free learning.

**Highlights:** Smart subject timer, 10-minute automatic log, Structured to-do list, Data analytics & reports, Fully offline mode, Minimalist B&W design

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

**In-app purchases:** none


## Frequently asked questions

### Is DDays free?

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

### Is Ditto free?

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

### Do DDays or Ditto have ads?

Ditto shows ads; DDays does not.

### Which is updated more often, DDays or Ditto?

DDays ships an update every 2 weeks, and Ditto every 3 days. Most recently, DDays was updated on October 8, 2026 and Ditto on October 14, 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.*