# Spike Logic — Precision Protein Timing

> Precision Protein Timing (iPhone/iPad app by Terence Tan.)

- Source: https://appshunter.io/ios/app/spike-logic/id6758616921 (this page in markdown: same URL + `.md`)
- Developer: [Terence Tan](https://appshunter.io/developer/1871899753)
- Category: Health & Fitness
- Price: $2.99
- Age rating: 4+
- Requires: iOS 15.1 · 35 MB
- Languages: American English
- Released: 2026-02-11
- Data updated: 2026-06-29
- User reviews in markdown: https://appshunter.io/ios/app/spike-logic/id6758616921/reviews.md

## What is Spike Logic?

Spike Logic — Precision Protein Timing

Stop guessing when to eat. Start building muscle on schedule.

Spike Logic is the first metabolic timing app built around the science of muscle protein synthesis (MPS). It solves the "when" problem — telling you the optimal moment to trigger your next anabolic window, not just what to eat.

How It Works

Every time you consume enough leucine (the amino acid that triggers muscle growth), your body enters a synthesis window. But after each window, your muscle receptors need time to reload before they can respond again. Spike Logic tracks this entire cycle in real time so you never waste a meal — or miss a window.

Key Features

Real-Time eMPS Tracking — Watch your Effective Muscle Protein Synthesis time accumulate throughout the day with a live odometer that shows exactly how much building time you've earned.

Three-Tier Absorption System — Log meals by their dominant protein speed: RAPID (whey isolate), STEADY (lean meats, poultry, egg whites), or EXTENDED (whole eggs, fatty meats, mixed meals). Each tier has different synthesis durations and efficiency multipliers.

Smart State Machine — Always know your status: Synthesis Window Open (time to eat), Active Synthesis (building in progress), or Receptor Reload (wait for it).

24-Hour MPS Chart — Visualize your entire day's protein synthesis activity on a clean timeline. See exactly when you spiked, how long each window lasted, and where gaps remain.

Idle Time Awareness — Track potential growth time lost when your window is open but you haven't triggered a spike.

Log Past Meals — Forgot to log? Go back up to 30 days and retroactively add meals with smart overlap detection.

Personalized Leucine Targets — Calculate your minimum leucine threshold based on your lean body mass and age.

Daily Spike Tracker — See how many successful synthesis triggers you've achieved today at a glance.

Smart Notifications — Get notified when your receptor reload completes, receive morning anchor spike reminders, and get nudges if you've been idle too long — all with configurable Do Not Disturb hours.

Who It's For

Whether you're a natural lifter optimizing every meal, a coach timing client nutrition, or someone who wants to get the most from every gram of protein — Spike Logic gives you the precision edge.

Built Different

No calorie counting. No macro tracking. No meal plans. Just one question answered perfectly: When is your next window open?


## Version history (last 3 releases)

### 1.0.2 — 2026-02-18

Lots of new features.

Muscle building edge metric.
-This feature provides a relative metric which estimates compared to the general individual who is unaware of leucine spike timing and receptor reloading, what would be the relative potential gains.

Accelerated spikes.
-For folks who are taking off the shelf supplements to speed up the protein synthesis, they can now utilize accelerated spikes

Leucine database.
-Static offline database of over 4000 food items, to estimate the amount needed to hit the leucine spike levels

Sharing of progress
-Allows easy sharing of progress with family and friends

### 1.0.1 — 2026-02-16

1. Fixed history logging bug that was preventing previous day's history from showing up correctly. 
2. Fixed inconsistency about egg whites not being included in rapid spike.
3. Added documentation panel on how to use the app.
4. Fixed default values for profile to be more generic.

### 1.0 — 2026-02-11

No release notes.

## More apps by Terence Tan

- [Wrist Coach: Gym Tracker](https://appshunter.io/ios/app/wrist-coach-gym-tracker/id6759524868)

All apps by Terence Tan: https://appshunter.io/developer/1871899753

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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 2026-06-29.*