# BookListViewer2 vs Anniversary Tracker

The clearest difference is ads: BookListViewer2 at none against Anniversary Tracker's shown. BookListViewer2 also leads on iOS requirement (12.1 vs 15.0). Anniversary Tracker's advantage is update cadence (weekly vs every 3 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. BookListViewer2 sells 1 one-off in-app purchase and Anniversary Tracker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

BookListViewer2 ships an update every 3 months, Anniversary Tracker weekly. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BookListViewer2 | Anniversary Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 88.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 95 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mika Hatakeyama](https://appshunter.io/developer/445272831) | [Kobayashi Ryotaro](https://appshunter.io/developer/1838443062) |

## What reviewers say

### BookListViewer2

[App page](https://appshunter.io/ios/app/booklistviewer2/id975024899)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を消す | $0.99 | one-time |


### Anniversary Tracker

[App page](https://appshunter.io/ios/app/anniversary-tracker-koi-diary/id6752251393)

This app helps you track important relationship dates and milestones, like anniversaries and special events. It allows you to count days together, set reminders for upcoming events, and save precious memories with photos and notes in a private diary.

**Highlights:** Anniversary counter, Milestone highlighting, Personal diary with photos, Customizable backgrounds and fonts, 4-digit passcode protection, Day, week, month, year tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (1 Month) | $3.99 | per month |
| Premium Plan (Lifetime) | $14.99 | one-time |


## Frequently asked questions

### Is BookListViewer2 free?

BookListViewer2 is free to download, with in-app purchases available.

### Is Anniversary Tracker free?

Anniversary Tracker is free to download, with in-app purchases available.

### Do BookListViewer2 or Anniversary Tracker have ads?

Anniversary Tracker shows ads; BookListViewer2 does not.

### Which is updated more often, BookListViewer2 or Anniversary Tracker?

BookListViewer2 ships an update every 3 months, and Anniversary Tracker weekly. Most recently, BookListViewer2 was updated on November 1, 2026 and Anniversary Tracker on November 5, 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.*