Librarian vs MeasureWarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Librarian
Easily find libraries and books across Japan. Search by map, area, or your current location, and look for books by keyword or genre. Check book availability at nearby libraries.
- Search libraries by map
- Search libraries by area
- Search libraries by current location
- Search books by keyword
- Search books by genre
- Check book availability
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This application can search for the library and the book on Japan. 1. Method of searching for library. (1) Map (2) Area (3) The present location outskirts 2. Method of looking for book (1) Keyword (2) Genre of book It can be confirmed whether there is a book in the library near the place where you are. This application supports only Japanese.
MeasureWarm
This utility app allows you to measure the approximate size of objects when a ruler is not available. It supports various devices and offers conversion between metric and imperial units.
- Virtual ruler for approximate measurements
- Supports iPhone, iPad, and iPod
- Metric and imperial unit conversion
- Adjustable device size for accuracy
- Instructional animation for complex measurements
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定規がない時、定規がわりに使えます。 だいたいざっくりした大きさが測れます。 デバイスの幅より長いものを測るときは、指とデバイスを交互に動かして測ります。 詳しい測り方は「設定 config」の下のアニメをみてください。 iPhone,iPad,iPhoneXなど、様々なデバイスに対応しました。 もしちょっとサイズが違うと感じた場合は、「設定 config」で、別なDevice Sizeを選択して試してみてください。 「変換 convert」で、メートル系の尺度とインチやヤード系の尺度との変換もできます。
Screenshots
Verdict
The clearest difference is review sentiment: Librarian at 47% against MeasureWarm's 0%. MeasureWarm's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Librarian ships an update every 4 months, MeasureWarm every 6 months. Both last shipped on November 1, 2026.
| Parameter | Librarian | MeasureWarm |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (2 ratings) — better |
| Positive reviews | 47.1% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | shinichi tanimoto | Mika Hatakeyama |
Customer experience
Librarian
MeasureWarm
In-app purchases
Librarian
No in-app purchases
MeasureWarm
No in-app purchases
