What Kyra is
A privacy-first trading journal for iOS focused on equities. Pattern detection runs on-device. Every pattern shows its sample size and an uncertainty range — the four tiers (Tracking, Hint, Signal, Proven) sharpen as your history grows, so claims stay honest about how much evidence supports them. Primary buyer: a retail self-executor who wants the gap between strategy and execution made visible. $4.99/mo or $39.99/yr after a 7-day trial.
What Nara is
Nara is a free, on-device iOS journal built around a fast single-form log and a per-trade emotion picker. Its "Pattern Insights" view shows win rate by strategy and simple correlations, with labels like "Signal" and badges like "LOW CONFIDENCE" or "NEEDS DATA." All insights unlock together once you have logged 10 trades. Everything stays on the device, with no account; there is no iCloud sync, and there is no paid tier today.
How they compare
| Dimension | Kyra | Nara |
|---|---|---|
| Storage | On-device + iCloud user-private sync | On-device (offline only) |
| Account required | No | No |
| Sync across devices | iCloud user-private sync | None (single device) |
| Pattern approach | Sample-size-gated statistical inference; each label is earned per pattern | Win rate plus simple correlations; labels are descriptive |
| What "Signal" means | A tier a pattern reaches once its result is statistically significant | A styling label on the raw win rate |
| Sample size shown per claim | Yes — n and an uncertainty range on every pattern | Trade count shown; no per-pattern significance test |
| Gamification | None | Streaks (journaling, win-streak, positive-day) and notifications |
| Pricing | $4.99/mo or $39.99/yr (free tier included) | Free |
| Platforms | iOS | iOS |
Who should pick which
Pick Nara if:
- You want a free, fast, offline log and don't need cross-device sync
- You want a simple win-rate-by-strategy view with no subscription
- You only journal on one device
Pick Kyra if:
- You want a label like "Signal" to mean a pattern passed a significance test, with the sample size on the card
- You want your history to sync privately across your iPhone and iPad
- You want the engine to gate each pattern by how much evidence supports it, not label every win rate
The trade-off
Both apps keep your data on the device, so privacy is a tie, and Nara is free and ships a P/L calendar today. If those are what you need, it is a reasonable pick.
The difference is the engine under the vocabulary. Nara shows "Signal" as a label on a raw win rate. In Kyra, Signal is a tier a pattern only reaches once its result is statistically significant, and the sample size rides on the card. If words like "Signal" and "confidence" should be earned rather than styled, that is the line between them — here is the math behind every pattern and how pattern detection works.
Download Kyra on the App Store · The math behind every pattern · Pattern detection · Compare to other journals
