# Shifting Source — Fasting & keto in one place

> Fasting & keto in one place (iPhone/iPad app by Hejlsvig Consulting AB.)

- Source: https://appshunter.io/ios/app/shifting-source/id6789093040 (this page in markdown: same URL + `.md`)
- Developer: [Hejlsvig Consulting AB](https://appshunter.io/developer/1895103789)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 12+
- Requires: iOS 26.0 · 9 MB
- Languages: American English, Danish, Swedish
- Released: 2026-07-15
- Data updated: 2026-07-27
- User reviews in markdown: https://appshunter.io/ios/app/shifting-source/id6789093040/reviews.md

## What is Shifting Source?

Shifting Source brings intermittent fasting and the ketogenic diet together in one app. Built as the companion to the book The Keto & Intermittent Fasting Lifestyle, it follows the same principle: understand why it works, and the results will follow.

FASTING TIMER WITH LIVE ACTIVITY
• Choose 16:8, 18:6, 20:4, OMAD or your own custom window
• Follow your fast right on the Lock Screen and in the Dynamic Island
• See which phase your body is in along the way, explained in plain language
• Extended fasting (48 to 72 hours) with a mandatory safety check before you start

KETO WITHOUT THE HASSLE
• Log meals with net carbs, fat and protein
• TDEE calculator that gives you personal calorie and macro targets
• Daily overview of your carbs against your goal

TRAINING AND HABITS
• Five exercises with instructions and an easier version of each
• Log your sets and reps in seconds, including past days
• Weekly challenges that grow with you, streaks and badges
• Guided breathing exercises for calm and focus

INSIGHTS
• Calendar with fasts, meals, workouts and wellbeing day by day
• Weight, resting heart rate, HRV and sleep from Apple Health
• Trends for energy, mood and hunger over time

LEARN WHY
• Guides and research articles in English, Danish and Swedish
• Excerpts from the book, open to everyone
• All content is built on peer reviewed research

YOUR DATA IS YOURS
• No account and no login
• Everything is stored on your device
• Health data is never shared with third parties
• Export or delete everything with one tap

Shifting Source does not provide medical advice. Talk to your doctor before starting fasting or a ketogenic diet, especially if you are pregnant, breastfeeding or have a medical condition.


## Version history (last 2 releases)

### 1.1 — 2026-07-25

New in 1.1:
• The fasting timer now shows Start, Left and End with weekday, matching the Lock Screen
• The Live Activity shows "Fast completed" when you reach your goal, and the timer keeps running
• The daily tip now appears right in the notification, and a tap opens it instantly
• Notifications now open the right place in the app
• Extended fasting (48 and 72 hours) is open to everyone, with a mandatory safety check before you start
• Breathing sessions started from the timer screen are now saved correctly and have sound
• Reading time removed from articles
• Minor improvements and bug fixes

### 1.0 — 2026-07-15

No release notes.

## More apps by Hejlsvig Consulting AB

- [Read The Room — Her Cycle](https://appshunter.io/ios/app/read-the-room-her-cycle/id6762972727)

All apps by Hejlsvig Consulting AB: https://appshunter.io/developer/1895103789

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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 2026-07-27.*