# ThreeLinesDiary vs Sentence Embedding

The clearest difference is update cadence: Sentence Embedding at fortnightly against ThreeLinesDiary's every 6 months. On price, ads, 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.

ThreeLinesDiary ships an update every 6 months, Sentence Embedding fortnightly. The most recent releases landed on September 8, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ThreeLinesDiary | Sentence Embedding |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Seiji Nagano](https://appshunter.io/developer/689628441) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### ThreeLinesDiary

[App page](https://appshunter.io/ios/app/threelinesdiary/id1161808671)

A simple journaling app designed to improve sleep quality by encouraging users to write a three-line diary entry before bed. It allows for photo attachments and provides daily reminders to help build a consistent writing habit.

**Highlights:** Three-line daily journal entries, Attach photos to entries, Daily writing reminders, Improve sleep quality, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentence Embedding

[App page](https://appshunter.io/ios/app/sentence-embedding/id6673885843)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ThreeLinesDiary free?

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

### Is Sentence Embedding free?

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

### Do ThreeLinesDiary or Sentence Embedding have ads?

Both ThreeLinesDiary and Sentence Embedding show ads.

### Which is updated more often, ThreeLinesDiary or Sentence Embedding?

ThreeLinesDiary ships an update every 6 months, and Sentence Embedding fortnightly. Most recently, ThreeLinesDiary was updated on September 8, 2026 and Sentence Embedding on September 16, 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.*