SmartPro Instrument vs Rapping Level
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartPro Instrument
This app displays measurement test results synchronized with specialized devices. It allows users to generate, share, and print certifications for diamonds and other gemstones after completing required tests.
- Synchronized measurement test results
- Generate gemstone certifications
- Share and print certifications
- Supports Diamonds, Moissanites, CVD/HPHT
- Works with multiple SmartPro devices
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This application is used to display measurement test results which is synchronized with SmartPro devices. Users may generate, share and print certifications for Diamonds, Moissanites and CVD/HPHT by completing the required tests and certification form. Available SmartPro Devices 1. Reader I: Identifying between Diamond, Moissanite and Simulant. 2. Gem-Eye I: Distinguish between diamond and its other simulants. 3. Screen I: Identifying between Natural Diamonds from Synthetic Diamonds CVD/HPHT. 4. Optimum I: Identifying between Natural Diamond, CVD/HPHT and all types of Moissanite. 5. Primo I: Digital Gem Gauge, measures small dimensions accurately in millimeters with direct conversion to carat unit. Follow us on: https://www.youtube.com/channel/UC_8CvolTj8jbXJkwvZbdb5Q/videos) Website: https://www.smartproinstrument.com/
Rapping Level
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Check your rapping level and evaluate with a score
Screenshots
Verdict
The clearest difference is ads: SmartPro Instrument at none against Rapping Level's shown. Rapping Level's advantage is update cadence (every 2 weeks vs every 2 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SmartPro Instrument ships an update every 2 months, Rapping Level every 2 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.
| Parameter | SmartPro Instrument | Rapping Level |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (8 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 — better | 15.8.3 |
| Further details — not scored | ||
| Size | 44 MB | 43 MB |
| Age rating | 17+ | 4+ |
| Developer | SmartPro Instrument Co., Ltd. | Hideaki Uchikoshi |
In-app purchases
SmartPro Instrument
No in-app purchases
Rapping Level
No in-app purchases
Questions
Is SmartPro Instrument free?
Is Rapping Level free?
Do SmartPro Instrument or Rapping Level have ads?
Which is updated more often, SmartPro Instrument or Rapping Level?
Other comparisons
