# Calibrate: Decision Journal — Decide. Review. Calibrate.

> Decide. Review. Calibrate. (iPhone/iPad app by Antonio Vargas.)

- Source: https://appshunter.io/ios/app/calibrate-decision-journal/id6789403906 (this page in markdown: same URL + `.md`)
- Developer: [Antonio Vargas](https://appshunter.io/developer/1785352771)
- Category: Productivity, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-07-15
- Data updated: 2026-08-03
- User reviews in markdown: https://appshunter.io/ios/app/calibrate-decision-journal/id6789403906/reviews.md

## What is Calibrate?

Calibrate is a beautiful decision journal that scores your judgment over time.

Most journals capture how you felt. Calibrate captures what you decided, how sure you were, and whether you were right.

HOW IT WORKS
1. Log a decision in under a minute — title, confidence, domain, review date.
2. When the time comes, score the outcome honestly.
3. Watch your hit rate, calibration curve, and domain strengths emerge.

BUILT FOR PEOPLE WHO SHIP CHOICES
Founders, PMs, operators, investors, and ambitious professionals who make high-stakes calls weekly — and want a private truth dataset, not another diary.

FREE
• 15 decisions to prove the loop
• Confidence logging + outcome reviews
• Basic hit rate

CALIBRATE PRO
• Unlimited decisions
• Full calibration curve & Brier score
• Domain breakdowns and bias labels
• CSV export of your decision history
• Monthly or yearly subscription (eligible new yearly subscribers receive a 7-day free trial)

PRIVATE BY DESIGN
Everything stays on your device. No account. No tracking SDKs. No feed.

Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions.

Privacy Policy: https://iamantonio.github.io/calibrate/privacy.html
Support: https://iamantonio.github.io/calibrate/support.html
Contact: calibrate@provenmachine.com
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Calibrate Pro Yearly | $29.99 | per year |
| Calibrate Pro Monthly | $4.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-07-16

No release notes.

## More apps by Antonio Vargas

- [Friction Killer](https://appshunter.io/ios/app/friction-killer/id6756983270)
- [Hearthkeep: Home Inventory](https://appshunter.io/ios/app/hearthkeep-home-inventory/id6779967392)
- [Return Window Radar](https://appshunter.io/ios/app/return-window-radar/id6785049120)
- [Habits — Simple Habit Tracker](https://appshunter.io/ios/app/habits-simple-habit-tracker/id6786055485)
- [Warranty Window Radar](https://appshunter.io/ios/app/warranty-window-radar/id6788199339)

All apps by Antonio Vargas: https://appshunter.io/developer/1785352771

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*