About this app
What FODMAP Detective does
FODMAP Detective is the offline guide through the hardest part of the low-FODMAP diet: the reintroduction phase, where most people get stuck and never learn which foods they can actually tolerate. The low-FODMAP diet is the first-line dietary treatment for IBS, which affects 25-45 million Americans. But the gold-standard food-rating app (Monash) has no symptom tracker, and the comprehensive logger (mySymptoms) produces analysis reports users call 'completely useless.' Nobody owns the guided-reintroduction-plus-readable-results niche. What FODMAP Detective does: — Guided challenges, one FODMAP group at a time. Fructose, lactose, sorbitol, mannitol, GOS, fructans — the app walks you through a structured challenge for each, with the right test foods and portions, and schedules the challenge and washout windows. — Symptom logging that fits IBS. Bloating, pain, urgency, stool (Bristol scale), gas — logged in seconds, time-stamped. — Per-group tolerance verdicts. After a challenge, FODMAP Detective gives a plain-English result: 'You tolerated lactose well' or 'Fructans triggered moderate symptoms at half a serving.' The correlation report Monash and mySymptoms never deliver. — Bundled FODMAP food list. Foods tagged by FODMAP group and serving threshold, on-device — no recipe or barcode API. — Challenge reminders. EventKit nudges for the next test dose and the washout day. — Doctor/dietitian PDF. Export your full reintroduction results. — No account, no ads, no subscription, no cloud. For the 25-45M Americans with IBS whose dietitian told them to do reintroduction — and who need a detective, not a spreadsheet.
Features
Built to be useful, not noisy.
Challenges
Guided single-FODMAP-group reintroduction with scheduled doses
Log symptoms
Bloating/pain/urgency/Bristol-scale stool/gas, time-stamped
Verdicts
Plain-English per-group tolerance result
Food list
Bundled foods tagged by FODMAP group + threshold
Dietitian PDF
Full reintroduction results export via share sheet
Why it exists
The problem
The low-FODMAP reintroduction phase is where people get stuck, but Monash (gold-standard ratings) has no symptom tracker and mySymptoms produces analysis reports users call 'completely useless' — nobody guides the per-group challenge and delivers a readable tolerance verdict.
What's different
How FODMAP Detective stands out
FODMAP Detective is the only app that guides structured single-FODMAP-group reintroduction challenges (scheduling test doses + washouts via EventKit) and outputs a plain-English per-group tolerance verdict from your symptom log — entirely offline with a bundled FODMAP food list — Monash has no symptom tracker, mySympt…
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FAQ
Questions about FODMAP Detective
How much does FODMAP Detective cost?▾
FODMAP Detective is free. All features are included from day one — no subscription, no in-app purchases, no paid tiers. Everything you see in this listing works the moment you install it.
Where does FODMAP Detective store my data?▾
On your device. FODMAP Detective is built privacy-first: no account is required, no analytics SDKs, no third-party trackers. Nothing is uploaded to a server we control — the app works without one.
What platforms does FODMAP Detective support?▾
iOS, on iPhone and iPad. You can find the latest availability on this page.
How do I get support for FODMAP Detective?▾
Use the Support link on this page, or email support@allthingsn.com. We answer every message and keep responses on the same thread.
The story
Meet FODMAP Detective — Win the FODMAP reintroduction phase
Read the full write-up · 4 min →
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