Comparison

Neutrien vs FastDown

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Neutrien

This app acts as a personal nutrition coach, providing one clear next step for your health goals like weight loss or muscle gain. It offers practical guidance based on your preferences and progress, removing the complexity of calorie counting and rigid meal plans.

Highlights
  • Personalized nutrition coaching
  • Actionable next steps for goals
  • Meal planning around schedule
  • Improve meals without overcomplication
  • Guidance for eating out
  • Log food by photo, text, or barcode
  • Calorie and macro tracking
Read full description

Turn your nutrition goal into one clear next step. Neutrien is a personal nutrition coach for people with a real goal - weight loss, muscle gain, or better body composition - but who are tired of managing every calorie, macro, and meal themselves. Instead of giving you another dashboard to interpret, Neutrien uses your goals, food preferences, routine, recent meals, and progress to tell you what makes sense next. Built for real life Work gets busy. Plans change. You eat out. A heavier meal happens. All good. Nothing is ruined. Neutrien helps you understand what changed and gives you one practical next step - without guilt, rigid rules, or starting over after one imperfect meal. Ask your coach anytime to: * Decide what to eat next * Plan practical meals around your schedule and preferences * Improve a meal without overcomplicating it * Make a sensible choice when eating out * Adjust after an unplanned or heavier meal * Add more protein to your day * Check whether your eating supports your goal More than a calorie counter or meal planner Log food by photo, text, or barcode. Use the calorie tracker to follow calories, protein, and macros when the numbers help. Neutrien connects food tracking, meal planning, and personalized nutrition coaching, then turns that context into one recommendation you can act on. Personalized around you Your guidance can reflect your goals, dietary needs, likes, dislikes, normal foods, training, recent eating, and progress. When your schedule or food choices change, Neutrien helps you choose the next sensible step. No rigid diet. No shame. No perfect-day plan. Neutrien removes the work. You keep the control. Neutrien is a nutrition app for adults aged 18 and over and supports general nutrition and wellness. It is not a substitute for professional medical advice. Subscriptions Access to Neutrien requires an auto-renewing subscription. Subscription options are available for 1, 3, or 12 months and begin after a 7-day free trial. Prices vary by country and region. Your subscription automatically renews unless canceled at least 24 hours before the end of the current subscription period. Payment will be charged to your Apple Account at confirmation of purchase. You can manage or cancel your subscription at any time through your Apple Account subscription settings. Any unused portion of the free trial will be forfeited when a subscription is purchased. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FastDown

Features
Read full description

A fasting countdown. Pick a window - 12 to 48 hours between meals, or any length you set - and hold the line. Nothing is gated. Every window is pickable from day one; the ladder (12→18→24→36→48) marks progress, it doesn't lock it. Carry a window to term and it earns its badge and feeds a daily streak. THE CLOCK RUNS FROM YOUR LAST MEAL, NOT FROM THE TAP. You eat, you remember the app an hour later. FastDown asks — one tap says when you actually started, and the timeline, badge and streak inherit the truth instead of the error. WORKS WITHOUT BEING LOOKED AT. Start your usual window from a Home Screen widget, a notification button, or a Siri phrase. A Live Activity keeps the countdown on your lock screen, with a FINISH button once you're past term. Reaching term never stops the clock - overtime counts up, and the hours count. IT LEARNS YOU, AND IT ASKS. Start at the same time five days running and it offers that time as your daily reminder. Skip every Sunday and it offers to keep the nudge quiet on Sundays. Give up 16-hour windows around hour nine three times and it offers a word of encouragement at hour eight-thirty. Every finding is offered once, your refusal is remembered, and nothing ever changes without your yes. A RECORD YOU CAN TRUST. Every window is logged, finished or not. Entries can be corrected, past fasts added by hand, and a hand-logged fast is worth exactly as much as a timed one. Deleting is the only irreversible act in the app, so it gets an undo. WHAT YOUR BODY IS DOING. A nine-stage timeline tracks the physiology of a fast — blood sugar, the glycogen tap, the fat switch, ketosis — hour by hour, wherever you are in the window. General information, not medical advice. PRIVATE BY ARCHITECTURE. No account. Your record never leaves your phone. Anonymous usage counts help improve the app — nothing identifies you, and the switch to turn them off is in the open, on the main screen. This is a timer, not medical advice. Fasting isn't for everyone - check with your doctor, drink water, and stop the moment you feel unwell.

Screenshots

Neutrien4 screens
FastDown4 screens

Verdict

The call

The clearest difference is in-app purchases: FastDown at none against Neutrien's 9. FastDown also leads on update cadence (every 4 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neutrien sells 9 in-app purchases, starting at $14.99 per month. FastDown asks for nothing beyond the download.

UpkeepUpdate frequency

Neutrien ships an update every 9 days, FastDown every 4 days. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Neutrien versus FastDown: the parameters behind the verdict, then further details
ParameterNeutrienFastDown
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size235 MB2 MB
Age rating17+4+
DeveloperAura VPN LLCLobsag Paredes

In-app purchases

9 purchases

Neutrien

Subscriptions9
  • Neutrien Premium Monthly7 Days trial$14.991 Month
  • Neutrien Premium Monthly7 Days trial$15.991 Month
  • Neutrien Premium Monthly7 Days trial$19.991 Month
Show 6 more
  • Neutrien Premium 3 Months7 Days trial$33.993 Months
  • Neutrien Premium 3 Months7 Days trial$35.993 Months
  • Neutrien Premium 3 Months7 Days trial$45.993 Months
  • Neutrien Premium Annual7 Days trial$74.991 Year
  • Neutrien Premium Annual7 Days trial$79.991 Year
  • Neutrien Premium Annual7 Days trial$99.991 Year
None

FastDown

No in-app purchases

Questions

Is Neutrien free?
Neutrien is free to download, with in-app purchases available.
Is FastDown free?
FastDown is free to download, with no in-app purchases.
Do Neutrien or FastDown have ads?
Neither Neutrien nor FastDown shows ads.
Which is updated more often, Neutrien or FastDown?
Neutrien ships an update every 9 days, and FastDown every 4 days. Most recently, Neutrien was updated on October 30, 2026 and FastDown on November 6, 2026.

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