MICRODAM MDi vs Donate Books
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MICRODAM MDi
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MICRODAM MDi application provides the measurement of pressure, vacuum, leak test, temperature of tube, and the function of saving/sharing the report of measurement through connecting with MICRODAM MDM008A digital manifold gauge. [Available device] - MICRODAM digital manifold gauge, MDM008A [Key features] 1) Pressure measurement 2) Pressure leak test 3) Vacuum measurement 4) Vacuum leak test 5) Measuring temperature of tube 6) Calculation of Superheat and Subcooling 7) Set the Target vacuum and Alarm 8) Set frequently used refrigerants (5 refrigerants are available.) 9) Creating report of measured value, and sharing it through email or text messenger 10) Multi-national language support(Korean, English, French, Spanish, Chinese) 11) Firmware update including refrigerant data 12) User's guide
Donate Books
This app helps you identify which books from your collection are wanted by the Internet Archive for preservation and digitization. Scan book barcodes or printed identifiers using your phone's camera to receive immediate feedback on whether to donate.
- Scan book barcodes
- OCR printed identifiers
- Camera-based scanning
- Preservation feedback
- Digitization matching
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The Internet Archive Donate Books app helps donors determine which books from their collection to donate to the Internet Archive so they can be preserved and digitized. The app allows users to scan their book barcodes or identifiers to figure out which books to donate. Users can scan book barcodes or OCR printed identifiers in their books using their phone camera to identify their books and match to corresponding metadata. They will then receive feedback on whether the Internet Archive wants to preserve and digitize the book. The app includes modes for scanning barcodes or using OCR to scan printed identifiers. Simply place the barcode or identifier in the view of your phone camera and see a red or green response indicating whether to donate the book or not. For installation instructions, where to report bugs or request assistance, and information about physical item donations to the Internet Archive please see our help center page.
Screenshots
Verdict
The clearest difference is update cadence: Donate Books at every 4 months against MICRODAM MDi's every 8 months. On price, ads, in-app purchases and device support 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.
MICRODAM MDi ships an update every 8 months, Donate Books every 4 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | MICRODAM MDi | Donate Books |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (7 ratings) — better |
| Positive reviews | — | 60.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Sungshin Hasco, Ltd. | Internet Archive |
In-app purchases
MICRODAM MDi
No in-app purchases
Donate Books
No in-app purchases









