What Kyra is
A privacy-first trading journal for iOS. Trades stored on-device. Pattern detection runs locally and surfaces patterns from your own trade history with explicit sample sizes and uncertainty ranges — the four tiers (Tracking, Emerging, Developing, Established) sharpen as your history grows so claims stay honest about how much evidence supports them. Primary buyer: a retail self-executor who has a strategy and wants to understand the gap between knowing and doing. $4.99/mo or $39.99/yr after a 7-day trial.
What Mantis is
Mantis is an iOS trading journal built around emotion tagging at trade entry ("Log how you felt on every trade," per its listing). Its hero integration is Interactive Brokers import via Flex Query credentials, with sync since the last import or over a date range, plus live prices and unrealized P/L on open positions. Its App Store privacy label lists only usage and diagnostic data, not linked to identity. In the version we reviewed hands-on (May 2026), pattern insights surfaced as emotion correlations without a stated significance test. Pricing: $4.99/mo or $29.99/yr with a 7-day trial (App Store listing, 2026-09-05).
How they compare
| Dimension | Kyra | Mantis |
|---|---|---|
| Storage | On-device + optional iCloud user-private sync | On-device (privacy label: nothing linked to identity) |
| Broker auto-sync | No | Yes (Interactive Brokers Flex Query import) |
| Live unrealized P/L on open positions | No | Yes |
| Pattern detection approach | Sample-size-gated statistical inference, on-device | Emotion correlations; no significance test shown (May 2026 review) |
| Sample-size shown per claim | Yes — every pattern shows n and an uncertainty range | Not shown (May 2026 review) |
| Emotion taxonomy | 8 states (research-grounded; Russell circumplex) | Emotion labels such as confident, patient, fearful, impulsive (per listing) |
| Annual price | $39.99 | $29.99 |
| Trial length | 7 days | 7 days |
Who should pick which
Pick Mantis if:
- You trade through Interactive Brokers and want trades to sync automatically
- You want live unrealized P/L visibility on open positions inside the journal
- You want emotion tagging in a journal that also imports from your broker
- The lowest annual sticker price is the deciding factor
Pick Kyra if:
- You want pattern claims with explicit sample sizes and uncertainty ranges — not "you do better when calm" without an
n - You want pattern claims that show their evidence — sample size and uncertainty range on every card — instead of correlations without confidence framing
- You want each trade to carry exactly one emotion state from a fixed set, which keeps the inference clean
The trade-off
The honest trade-off: Mantis ships an integration Kyra deliberately doesn't (Interactive Brokers import). Kyra ships sample-size discipline — claims wait until the evidence supports them. If broker auto-sync is the binding constraint of your workflow, Mantis is the right tool. If pattern reliability with sample-size honesty is the binding constraint, Kyra is the right tool.
Both apps store data on-device. Neither is a cloud-LLM-coach product. The category overlap is real; the math discipline is where they part ways.
Mantis details reflect its App Store listing as checked on 2026-09-05, plus a hands-on review in May 2026 where noted. Features and pricing change; verify current details with the developer. Kyra details reflect v1.7.
Download Kyra on the App Store · The math behind every pattern · Why on-device · Compare to other journals
