Visolve for iPhone vs 2FA TOTP Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Visolve for iPhone
This utility app assists individuals with color vision deficiency by transforming images and webpages to enhance color distinction. It offers various filters and simulations to help users perceive colors differently or understand how color-blind individuals see the world.
- Red-Green color transform
- Blue-Yellow color transform
- Saturation increase
- Color filtering
- Hatching patterns
- Color blindness simulation
- Image and webpage transformation
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Visolve is the assistive software for people with color vision deficiency, commonly called color blindness. Its PC version has been used by many people around the world, and now this is its iPhone version. Visolve for iPhone can apply the following transformations, which are same as PC version, to an image newly taken by Camera or being saved in Photo Albums, or a webpage being displayed: 1. Red-Green transform -- transforms redder colors to brighter, and greener colors to darker, 2. Blue-Yellow transform -- transforms bluer colors to brighter, and yellower colors to darker, 3. Saturation increase -- increases the saturation of all colors, 4. Filtering -- darkens all colors other than the specified color, and 5. Hatching -- draws different hatch patterns according to color. Those transformations help people to distinguish colors, to find a specific color, or to guess a normal color. By using Visolve for iPhone, you can take an image and transform its colors anywhere on the spot when you find a scene or a road sign, etc., which consist of indiscriminable colors. Additionally, it can simulate the appearance of an image for people with color blindness. By using this feature, people with normal color vision can check how color-blind people see a scene or a caution sign, etc. Note that, however, it should be used only as a guide. We DO NOT guarantee the accuracy of the simulation image generated by Visolve.
2FA TOTP Authenticator
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Simple two-step verification (2FA), OTP (One Time Password) dynamic code generator (currently only supports TOTP), good operating experience, minimalist interface, the data is automatically synchronised to iCloud, do not worry about data theft, loss. There is another WatchApp to sync the data of iPhone, you can view the dynamic verification code on Watch, and it is basically compatible with iPad, and you can sync the data with iPhone through iCloud. Never add adverts or in-app purchases. Other features. - Album QR Code Import - QR code export - Night/Day mode - FaceID/TouchID/lock code verification can be set at startup
Screenshots
Verdict
The clearest difference is price: Visolve for iPhone at Free against 2FA TOTP Authenticator's $0.99. Visolve for iPhone also leads on iOS requirement (11.0 vs 26.0). 2FA TOTP Authenticator's advantage is update cadence (every 5 weeks vs every 11 months). On 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
Visolve for iPhone is free to download; 2FA TOTP Authenticator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Visolve for iPhone ships an update every 11 months, 2FA TOTP Authenticator every 5 weeks. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | Visolve for iPhone | 2FA TOTP Authenticator |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 11 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 15 MB |
| Age rating | 17+ | 4+ |
| Developer | Ryobi Systems Co.,Ltd. | 捷 凌 |
In-app purchases
Visolve for iPhone
No in-app purchases
2FA TOTP Authenticator
No in-app purchases
Questions
Is Visolve for iPhone free?
Is 2FA TOTP Authenticator free?
Do Visolve for iPhone or 2FA TOTP Authenticator have ads?
Which is updated more often, Visolve for iPhone or 2FA TOTP Authenticator?
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