# highlow vs ThreeLinesDiary

The clearest difference is ads: highlow at none against ThreeLinesDiary's shown. highlow also leads on update cadence (every 5 weeks vs every 6 months) and iOS requirement (8.0 vs 15.0). 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.

highlow ships an update every 5 weeks, ThreeLinesDiary every 6 months. The most recent releases landed on December 4, 2025 and September 8, 2026 respectively.

## The numbers

| Metric | highlow | ThreeLinesDiary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | — | Ad-supported |
| Size | 4 MB | 7 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHIGEYUKI TAKAHASHI](https://appshunter.io/developer/437200400) | [Seiji Nagano](https://appshunter.io/developer/689628441) |

## What reviewers say

### highlow

[App page](https://appshunter.io/ios/app/highlow/id438132900)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is highlow free?

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

### Is ThreeLinesDiary free?

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

### Do highlow or ThreeLinesDiary have ads?

ThreeLinesDiary shows ads; highlow does not.

### Which is updated more often, highlow or ThreeLinesDiary?

highlow ships an update every 5 weeks, and ThreeLinesDiary every 6 months. Most recently, highlow was updated on December 4, 2025 and ThreeLinesDiary on September 8, 2026.

---

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