mOTP vs Bar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mOTP
This utility generates time-based one-time passwords for secure two-factor authentication. It acts as a security token, requiring a PIN and the device to generate temporary passwords valid for a short duration.
- Generates one-time passwords
- Two-factor authentication
- Acts as a security token
- Requires PIN and device
- MD5-hashing algorithm
- Challenge-response authentication
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This application lets you generate One Time Passwords that are used for a more secure authentication (two-factor) - instead of having to enter a static password the iPhone plays the role as a "security token" that generates passwords that are valid only one time. The authentication mechanism is based on two factors: - the token device (i.e. mOTP-Application) and - a PIN Since the generated passwords are only valid for a very short time - it is of no use for a possible attacker. Moreover the passwords can only be generated with a hold of the PIN as well as the token device. Note: - the server you want to log onto also needs to implement the OTP-algorithm, you need to configure your "shared secret/PIN" there - the secret key is generated using random by shaking your iPhone :) - the algorithm uses MD5-hashing - compare this solution with "Mobile-OTP" Midlet solution on http://motp.sourceforge.net/- also free server components to be used e.g. as PAM can be found there. - the clocks of your iPhone and your Server have to be in sync - the algorithm can also be used for implementing a challenge-response authentication i.e. the PIN is not fixed but a random number is provided to you by the server at the login prompt.
Bar
Instantly scan QR codes and barcodes using your device's camera. Open links, save your scan history, and share results quickly. This utility works offline and features a simple, user-friendly design for quick access to information.
- Fast QR and barcode scanning
- Scan QR codes from photos
- Save scan history
- Share and open links
- Offline scanning capability
- Lightweight and easy to use
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Bar-code Scanner – Quick QR and Barcode Reader Scan QR codes and barcodes instantly with your iPhone’s camera! Open links, save scans, and share results in seconds. Features: * Fast QR and Barcode Scanning – Quick scans for websites, coupons, and more * Scan from Photos – Decode QR codes from your gallery * Save Scan History – Keep track of past scans * Share and Open Links – Easily share results or open web pages * Works Offline – No internet needed for scanning * Lightweight and Easy to Use – Simple, no-fuss design Perfect for: Opening URLs, checking promo codes, sharing contact info, and more! Get Bar-code Scanner – Scan QR codes in a flash
Screenshots
Verdict
The clearest difference is price: Bar at Free against mOTP's $0.99. mOTP's advantage is ads (none vs shown) and review sentiment (73% vs 43%). On update cadence, 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
Bar is free to download; mOTP costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
mOTP ships an update every 28 months, Bar every 20 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | mOTP | Bar |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 2.7 (10 ratings) — better | — |
| Positive reviews | 72.7% of reviews — better | 42.9% of reviews |
| Number of ratings | 10 — better | — |
| Update frequency | Every 28 months | Every 20 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | ise solutions | Aishvarya Sadasivam |
Customer experience
mOTP
Bar
In-app purchases
mOTP
No in-app purchases
Bar
No in-app purchases









