TopInfrared vs NextCode Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TopInfrared
This thermal imaging camera app provides high-resolution thermal images for precise temperature detection. It's ideal for inspecting insulation, examining electronics, and identifying heat loss with excellent accuracy and sensitivity.
- High-resolution thermal imaging (256x192)
- Precise temperature detection
- Insulation inspection
- Circuit board examination
- High heat sensitivity (40mk)
- Low power consumption
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Applications: The iOS smartphone thermal imaging camera offers exceptional precision in detecting temperatures, inspecting insulation, and examining circuit boards. Its impressive 256x192 ultra-high resolution ensures that thermal images are both sharp and detailed. The device has a temperature accuracy of ±3.6°F(2°C), boasting a resolution of 0.1°C. Moreover, with a low power consumption of only 0.35W, you can use it for extended periods without concerns about battery life. The camera's high heat sensitivity of 40mk enables it to detect even the slightest temperature changes with great precision.
NextCode Authenticator
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NextCode Authenticator helps you sign in faster by showing the code you need now and the code coming next. Add two-factor authentication codes, keep them organized, and copy the right code with one tap. Built for standard time-based one-time passwords, NextCode Authenticator works with services that support TOTP QR codes. Scan a QR code, import from screenshots or image files, use supported migration QR exports, or enter account details manually. Your secrets stay on this iPhone. NextCode Authenticator does not require an account, does not use cloud sync, and does not send your vault to a remote server. Image imports are scanned on device, and encrypted backups are saved as local files you control. Features: - Current and next 2FA code display - TOTP verification codes for supported accounts - QR code scanning - Screenshot and image file import - Migration QR import for supported authenticator exports - Tap to copy current or next code - Search, favorites, and groups - Face ID, Touch ID, or passcode lock when available - Local encrypted backup and restore - QR export for one-time migration Free supports up to 5 codes. Premium unlocks unlimited codes with a one-time purchase.
Screenshots
Verdict
The clearest difference is iOS requirement: TopInfrared at 12.0 against NextCode Authenticator's 17.0. 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. TopInfrared sells 1 one-off in-app purchase and NextCode Authenticator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
TopInfrared ships an update every 3 weeks, NextCode Authenticator every 2 weeks. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.
| Parameter | TopInfrared | NextCode Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (51 ratings) — better | — |
| Positive reviews | 39.7% of reviews | — |
| Number of ratings | 51 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 518 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | HK TOPDON TECHNOLOGY Co., LIMITED | Zhe Wu |
In-app purchases
TopInfrared
- AI Features$19.99
NextCode Authenticator
- NextCode Premium$9.99
Questions
Is TopInfrared free?
Is NextCode Authenticator free?
Do TopInfrared or NextCode Authenticator have ads?
Which is updated more often, TopInfrared or NextCode Authenticator?
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