Every Kosher iPhone includes the KolBo Cheshbon HaNefesh — a modern implementation of the classical spiritual-accounting framework attributed to Rabbi Mendel of Satanov (1845), popularized by Rav Yisrael Salanter and the mussar movement.
The framework
The classical Cheshbon HaNefesh identifies 13 middot (character traits) for systematic weekly self-review. In the KolBo implementation:
- Pick which of the 13 middot you're focusing on this week - Log daily observations: successes, slippages, patterns - Weekly summary shows your pattern — which days you held strong, where you stumbled - Over time, build a multi-year history that shows real middot growth (or drift)
What's in the tool
13 classical middot
Equanimity, Patience, Order, Decisiveness, Cleanliness, Humility, Truth, Justice, Frugality, Diligence, Silence, Calmness, Truthfulness. Pick one or rotate.
Daily journaling
Short daily reflection — 2-3 minutes. Private to you; never shared or synced to our servers (stored locally only).
Weekly patterns
Visualize your week at a glance. See which days run strong, which run weak, and what the triggers are.
Teshuva log
When something needs teshuva, note it. Revisit during Elul, Aseret Yemei Teshuva, or any time the situation comes up again.
Multi-year comparison
This Elul vs. last Elul. See real patterns of spiritual growth over years — the purpose of a cheshbon hanefesh practice.
Fully private
All data stays on your device. Never uploaded to our servers. Apple's Secure Enclave protects it the same way it protects your messages.