Stopwatch° vs Cryptogram Cipher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stopwatch°
This app provides precise timekeeping with multiple stopwatches for simultaneous activity tracking. It offers a distraction-free full-screen mode and allows data export for analysis. Enjoy a reliable, ad-free, and subscription-free timing experience.
- Multiple stopwatches
- Simultaneous activity timing
- Full-screen mode
- Intuitive interface
- CSV data export
- Ad-free experience
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Stopwatch helps you time activities and record laps on iPhone and iPad. Use a single stopwatch or run several at once for sports, cooking, training, experiments, and everyday tasks. • Time multiple activities Run stopwatches independently or start and stop them together. • Keep your timers organized Name your stopwatches and group them into folders for different activities. • Record and compare laps Give laps descriptive names, review split and total times, and compare your fastest, slowest, and average laps. • Choose your view Switch between digital and analog displays, or use fullscreen mode for a larger clock. • Export your results Save stopwatch and lap data as CSV files to review in a spreadsheet or share with others. • Adjust the display Choose your preferred time precision and customize stopwatch controls to suit how you use the app. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stopwatchapp.carrd.co/#privacy
Cryptogram Cipher
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Some messages belong between the two of you. A settlement proposal. A tip for an investigation. A conversation about health. Cryptogramm encrypts sensitive texts on your iPhone. You share the block of characters by chat or e-mail. FOR LAWYERS At an appointment in your office, you and your client set up your shared key. From then on, your client sends their view on a settlement as an encrypted block of characters by e-mail. You open it in Cryptogramm. FOR JOURNALISTS A source encrypts their tip before sending it. A short meeting point they leave on an agreed NFC sticker – with an expiry time, or readable only once on an NTAG 424 DNA. You can share locations in encrypted form too. FOR EVERYDAY LIFE You discuss your parents' care with your sister, or send your partner the access code for the holiday flat. Encrypt the text and share it over the channel you trust. Short notes you leave on an NFC sticker for later pickup. THE LOCKED NFC DEAD DROP Besides ordinary NFC stickers, Cryptogramm supports the NTAG 424 DNA. It releases its content only after authentication with the matching key. A stranger's phone does not even see the encrypted text there. The app sets up a new NTAG 424 DNA the first time you write to it, in the same tap. With a different key it stops without changing the tag. Resetting with the matching key wipes the tag completely and turns it back into an ordinary sticker. READABLE ONCE ONLY On the NTAG 424 DNA the chip itself enforces the single read: it counts the pickup and prevents the message from being opened again afterwards – even by you. Simply tapping it with a stranger's phone does not use up the single read. About 250 characters fit into an ordinary message, about 108 into one that is readable once only. The label and the sender take up part of that. The input field shows how much still fits. MESSAGES WITH AN EXPIRY TIME One hour, one day, one week, 30 days or an exact moment: you decide how long a message stays readable in the dead drop. The expiry time is encrypted along with it. Cryptogramm no longer shows expired messages and, on the NTAG 424 DNA, overwrites them when they are read. Can be combined with reading once only. SHARE AND BACK UP KEYS Hand over your shared key by QR code, AirDrop or link. The link opens Cryptogramm on the other iPhone and asks for the one-time code. Send that code separately, by a different route. The key passport backs up your key on a folded A5 card – also for a lost phone or an emergency wipe. Keep it in a safe: it is as valuable as the key itself. EMERGENCY WIPE AS A SHORTCUT Delete your local keys without confirmation and without opening the app: with the Action button, a double tap on the back of the phone or an automation. PRIVACY AND EU CHAT CONTROL The EU interim regulation allows certain providers, under conditions, to carry out voluntary checks to combat child sexual abuse. It applies until 3 April 2028; end-to-end encrypted communication is exempt. The permanent regulation is still being negotiated. As of October 2026. Optical paper codes can be copied by hand and read with the camera. Encrypting and decrypting also work in airplane mode. NO ACCOUNT. NO SUBSCRIPTION. Access with Face ID or the device passcode. Locally protected keys, fixed deletion deadlines, no provider servers, no ads, no tracking. Nine languages, now including Russian. GOOD TO KNOW Both of you need the app and the same key. Who communicates with whom and when remains visible to the messenger. A key obtained later can open older ordinary messages. Deliberately reading the tag with an NFC app can make a once-only message unreadable without decrypting it. Reading once only does not prevent copies at the moment of pickup. Without the key it was set up with, an NTAG 424 DNA stays locked for good. Buy once. Give what's private the protection it deserves.
Screenshots
Verdict
The clearest difference is price: Stopwatch° at Free against Cryptogram Cipher's $0.99. Cryptogram Cipher's advantage is update cadence (daily vs every 2 weeks). On ads, 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
Stopwatch° is free to download; Cryptogram Cipher costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stopwatch° ships an update every 2 weeks, Cryptogram Cipher daily. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.
| Parameter | Stopwatch° | Cryptogram Cipher |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (329 ratings) — better | — |
| Positive reviews | 98.1% of reviews | — |
| Number of ratings | 329 — better | — |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Kai Oelfke | Robby Riedel |
Bugs and requests
Stopwatch°
Reported bugs
1 issue- CSV export not working (produces empty email)
Requested features
14 requests- Periodically ask for rating after extended use
- Add feature to sum time lapsed in folders
- Add feature to show start and end time for each lap
- Move reset or delete all buttons to less accessible locations
- Make buttons larger for easier use while biking
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- Make it float on the Lock Screen
- Add dark mode option
- Add option for different font colors for fastest/slowest laps in export
- Add option to delete single laps by swiping left
- Make delete confirmation optional
- Full screen option
- Make available for Apple Watch
- Visibly running current lap time on Apple Watch
- Rename folders
Cryptogram Cipher
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Stopwatch°
No in-app purchases
Cryptogram Cipher
No in-app purchases
Questions
Is Stopwatch° free?
Is Cryptogram Cipher free?
Do Stopwatch° or Cryptogram Cipher have ads?
Which is updated more often, Stopwatch° or Cryptogram Cipher?
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