Comparison

Prime Period vs Dotted

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Prime Period

Features
Read full description

PRIME PERIOD: THE PRIVATE CYCLE TRACKER More private than a paper journal. Prime Period is a cycle tracker designed to provide a secure and straightforward way to understand your body. Keep your data exactly where it belongs: on your device. SECURE & ACCOUNT-FREE - No Sign-Up Required: Your data is stored locally on your device, no accounts or emails required. - Privacy-First: We don't collect your personal information. - On-Device Storage: Data is stored locally on your device, protected by your device's built-in security. - Optional transfer: Move data between devices with a private key; we never see the key. STRAIGHTFORWARD TRACKING - Cycle Insights: Log dates and view your monthly patterns. - Preparedness: Get clear estimates for your next period. - Daily Logging: Track flow, mood, and symptoms. - Fluid Experience: Fast, responsive, and reliable. THE PRIME PROMISE Health tracking should be helpful and, above all, private. With Prime Period, your personal information stays exactly where it belongs: under your control. MEDICAL DISCLAIMER Prime Period is an informational tool and is not intended for contraception or medical diagnosis. Please consult a healthcare professional for medical advice. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Dotted

Features
Read full description

Dotted is a calm, beautiful period and cycle tracker that keeps your data completely private — and is genuinely helpful in the moment. Private by design • Everything stays on your phone, encrypted. No account, no servers, no tracking. • No ads. No data selling. Free, always. • Move your data between phones with a passphrase-encrypted backup — nothing ever touches a server. Predictions that adapt to you • Learns your own rhythm from your last cycles — shown as honest ranges, never a fake exact day, and widening when your cycles vary. • Estimates ovulation from your own ovulation tests and cervical-mucus logs, so it doesn't just assume "day 14." • Personal symptom patterns: when cramps tend to hit, when PMS usually shows up. In the moment • A big cramp-relief button with quick, evidence-based relief and craving swaps. • Tap any day to log flow, pain, mood, energy, sleep and more — in one quick screen. • A cycle wheel, a phase-colored calendar, and home-screen widgets. Gentle reminders, your way • Phase changes, period due/late, PMS, fertile window, pill, daily check-in — each toggleable, scheduled locally on your device. Dotted's predictions are estimates, not contraception or medical advice.

Screenshots

Prime Period3 screens
Dotted4 screens

Verdict

The call

The clearest difference is iOS requirement: Dotted at 14.0 against Prime Period's 16.6. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Prime Period sells 2 in-app purchases, starting at $0.99 per month and Dotted sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Ā· 5 level
Prime Period versus Dotted: the parameters behind the verdict, then further details
ParameterPrime PeriodDotted
PriceFreeFree
Update frequency—Every 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.614.0 — better
Further details — not scored
Size1 MB27 MB
Age rating4+12+
DeveloperFigenbladTORBJOERN SUNDVOR HENRIKSEN

In-app purchases

2 purchases

Prime Period

Subscriptions2
  • Premium - Monthly$0.991 Month
  • Premium - Yearly$9.991 Year
3 purchases

Dotted

One-time3
  • A coffee$3.00
  • A snack$5.00
  • A tip$10.00

Questions

Is Prime Period free?
Prime Period is free to download, with in-app purchases available.
Is Dotted free?
Dotted is free to download, with in-app purchases available.
Do Prime Period or Dotted have ads?
Neither Prime Period nor Dotted shows ads.

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