My Number Card Check App vs SecondLoop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My Number Card Check App
This app scans and reads the IC chip of a My Number Card to verify personal data. It's designed for businesses and local government to confirm the identity of customers and residents.
- Scan My Number Card IC chip
- Read personal data
- Verify name and personal information
- Identity verification for businesses
- Identity verification for local government
Read full descriptionHide full description
The "My Number Card Check App" provided by the Digital Agency scans and reads the IC chip in the My Number Card, and verifies the name and other personal data recorded on the card. Companies and local government authorities can use this app to verify the identity of customers and residents.
SecondLoop
Read full descriptionHide full description
Loop your focus, second by second. SecondLoop is a minimal interval timer that counts only in seconds — no minutes, ever. Set your phases (prepare → work → rest), build presets, and let the loop drive your rhythm. Features: - Seconds-only display for precise control - Auto-cycling through prepare / work / rest phases - Save up to 10 custom presets - Crystal-clear sound alerts via waveform synthesis - Dark & Light mode - Works offline with cloud sync Perfect for study sprints, cooking, presentation practice, meditation, breathing exercises, HIIT, and more. Simple as: how many seconds on, how many seconds off. That's it.
Screenshots
Verdict
The clearest difference is iOS requirement: My Number Card Check App at 18.0 against SecondLoop's 26.2. On price, update cadence, ads 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.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.
| Parameter | My Number Card Check App | SecondLoop |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (3 ratings) — better | — |
| Positive reviews | 31.8% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 9 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | デジタル庁 | Tetsuya Takaoka |
Bugs and requests
My Number Card Check App
Reported bugs
17 issues- Errors during registration
- Birthday input format issue
- Reading accuracy problems
- Cannot read My Number Card
- Cannot proceed after reading
Show 12 moreShow fewer
- Cannot confirm photo taken
- App is unusable
- Re-entry required
- Camera does not launch
- Requires repeated actions
- Cannot read card surface
- NFC reading accuracy low
- Camera recognition issues
- Cannot confirm read information
- Cannot proceed after reading
- Cannot read card surface
- Camera recognition issues
Requested features
10 requests- Make PIN settings optional
- Add English language support
- Improve birthday input clarity
- Provide clearer usage instructions
- Allow history deletion
Show 5 moreShow fewer
- Add sound for photo confirmation
- Allow input via JSON/XML
- Add support for driver's license
- Improve camera recognition accuracy
- Allow businesses to register for verification
SecondLoop
Not enough reviews yet to summarise bugs or requests.
In-app purchases
My Number Card Check App
No in-app purchases
SecondLoop
No in-app purchases
Questions
Is My Number Card Check App free?
Is SecondLoop free?
Do My Number Card Check App or SecondLoop have ads?
Which is updated more often, My Number Card Check App or SecondLoop?
Other comparisons
