# Diary Books vs Solid Focus Timer

The clearest difference is review sentiment: Solid Focus Timer at 78% against Diary Books's 9%. Diary Books's advantage is monetization model (free with in-app purchases vs paid). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Diary Books sells 1 one-off in-app purchase and Solid Focus Timer sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Diary Books ships an update every 10 days, Solid Focus Timer every 2 weeks. The most recent releases landed on September 22, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Diary Books | Solid Focus Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (16 ratings)](https://appshunter.io/ios/app/solid-focus-timer/id6444367413/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | 8.7% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 4 MB | 128 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [Alteru Inc.](https://appshunter.io/developer/434747758) | [Solid Apps SRL](https://appshunter.io/developer/1653740418) |

## What reviewers say

### Diary Books

[App page](https://appshunter.io/ios/app/diary-books/id353283040)

Record daily memories, thoughts, and special moments in a beautifully designed personal journal. Organize entries into distinct diary books for different life events, people, or goals. This app offers a private and simple space to capture your life stories and revisit cherished memories.

**Highlights:** Create multiple diary books, Write daily journal entries, Organize memories by year, topic, or person, Elegant diary-book design, Face ID support, Private journaling space

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diary Books App Purchase | $4.99 | one-time |


### Solid Focus Timer

[App page](https://appshunter.io/ios/app/solid-focus-timer/id6444367413)

This app helps ambitious individuals break down large goals into actionable steps and focus on achieving them. It offers AI-powered suggestions, a focus timer with Lo-Fi radio, and a community ranking system to motivate users. Your data is encrypted and 100% private.

**Highlights:** Actionable step creation, AI-powered goal suggestions, Focus timer with Lo-Fi radio, Community ranking and competition, Idea vault for saving thoughts, Privacy-focused design

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock this app (lifetime) | $4.99 | one-time |
| Unlock ALL 10 Solid Apps (lifetime) | $9.99 | one-time |


## Frequently asked questions

### Is Diary Books free?

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

### Is Solid Focus Timer free?

Solid Focus Timer is free to download, with in-app purchases available.

### Do Diary Books or Solid Focus Timer have ads?

Neither Diary Books nor Solid Focus Timer shows ads.

### Which is updated more often, Diary Books or Solid Focus Timer?

Diary Books ships an update every 10 days, and Solid Focus Timer every 2 weeks. Most recently, Diary Books was updated on September 22, 2026 and Solid Focus Timer on June 9, 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.*