Student Mobile App vs Digital Stamp Decoder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Student Mobile App
This app helps students at participating schools monitor their attendance. Users can clock in and out of school and review their attendance records. It's designed to simplify tracking school presence.
- Clock in/out functionality
- View attendance history
- School participation required
- Student attendance monitoring
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The Student Mobile App provides students who attend participating schools the ability to keep track of their attendance. This includes clocking in, clocking out, and viewing attendance history.
Digital Stamp Decoder
Reveal hidden images on USPS postage stamps using advanced Scrambled Indicia® technology. Originally designed for anti-counterfeiting, this app offers stamp collectors a unique way to authenticate and appreciate their collection. Explore the innovative world of philately with this modern collector's tool.
- Reveal hidden stamp images
- Utilizes Scrambled Indicia® technology
- Authenticates USPS postage stamps
- Aids stamp collectors and philatelists
- Showcase stamp collection
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Uncover hidden images in USPS postage stamps with the Digital Stamp Decoder! Originally developed by GSSC in partnership with USPS to protect against counterfeiting, this app brings the innovative Scrambled Indicia® technology to your smartphone. Now, you can reveal the hidden designs in the popular Shuttle Stamp, a must-have for stamp collectors and philatelists. Download the app, showcase your collection, and enjoy a unique, modern twist on stamp authentication. Don't miss out on this innovative collector's tool!
Screenshots
Verdict
The clearest difference is price: Student Mobile App at Free against Digital Stamp Decoder's $2.99. Student Mobile App also leads on update cadence (fortnightly vs every 5 months) and ratings volume (60 vs 2). Digital Stamp Decoder's advantage is rating (5.0 vs 1.6). On ads, in-app purchases, device support and iOS requirement 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
Student Mobile App is free to download; Digital Stamp Decoder costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Digital Stamp Decoder holds the better App Store score, 5.0 against 1.6. That said, the two scores are not equally well evidenced: Student Mobile App has 60 ratings behind it against 2, so its average is the more settled of the two.
Student Mobile App ships an update fortnightly, Digital Stamp Decoder every 5 months. The most recent releases landed on September 16, 2026 and June 1, 2026 respectively.
| Parameter | Student Mobile App | Digital Stamp Decoder |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 1.6 (60 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 60 — better | 2 |
| Update frequency | Fortnightly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 49 MB | 205 MB |
| Age rating | 4+ | 4+ |
| Developer | Emphasys Software | Graphic Security Systems Corp. |
Customer experience
Student Mobile App
Digital Stamp Decoder
In-app purchases
Student Mobile App
No in-app purchases
Digital Stamp Decoder
No in-app purchases
Questions
Is Student Mobile App free?
Is Digital Stamp Decoder free?
Which has better reviews, Student Mobile App or Digital Stamp Decoder?
Do Student Mobile App or Digital Stamp Decoder have ads?
Which is updated more often, Student Mobile App or Digital Stamp Decoder?
Other comparisons
