Comparison

Fast Days vs Decrease

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

Head to head
About

Fast Days

This app helps Christians rediscover the tradition of fasting by calculating fasting and abstinence days based on the Church calendar. It offers three tiers of practice, daily guidance with meal suggestions and reflections, and information on exemptions for various conditions. Widgets provide at-a-glance scheduling.

Highlights
  • Calculates fasting and abstinence days
  • Three tiers of fasting practice
  • Daily meal guidance and reflections
  • Exemptions for medical conditions
  • Home screen widgets
  • In-depth articles on fasting history
Features
Read full description

Christians have fasted for two thousand years. Most of us have forgotten when and why. Fast Days helps you rediscover this tradition. The app calculates every fasting and abstinence day of the year based on the Church calendar — including moveable feasts like Easter, Ember Days, and vigils — so you never have to guess. THREE TIERS OF PRACTICE Choose the level that fits your spiritual life: - Modern: The current discipline (post-1983). Ash Wednesday, Good Friday, and Fridays of Lent. - Traditional: The practice before 1966. All of Lent, Ember Days, vigils, and every Friday. - Historical Strict: The ancient discipline. Extended fasts, strict Lenten rules, and the full Advent fast. DAILY GUIDANCE Each day includes meal guidance explaining what you can eat, a reflection from Scripture or the Saints, and context for why the Church asks us to fast. BUILT WITH CARE Fasting is not for everyone, and the app makes that clear. Exemptions for pregnancy, nursing, illness, age, and other conditions are always visible. You can set your exemptions during onboarding and the calendar will adjust accordingly. WIDGETS Four home screen widgets keep your fasting schedule at a glance without opening the app. LEARN Ten in-depth articles cover everything from the basics of Catholic fasting to the history of Ember Days and the 1917 Code of Canon Law — written for newcomers and lifelong Catholics alike. This app is not a substitute for medical advice. Always consult a healthcare professional before changing your diet.

About

Decrease

Features
Read full description

DECREASE — A Catholic & Orthodox Fasting App. "He must increase, but I must decrease." — John 3:30. Decrease is a spiritual fasting app companion for Catholics and Orthodox Christians who want to grow closer to God through the ancient discipline of fasting. Whether you're preparing for Lent, a feast day, or simply seeking to detach from the things that distract you, Decrease guides you every step of the way. FAST FROM WHAT DISTRACTS YOU Choose from 24 fasting plans rooted in Catholic and Orthodox tradition: • Food & Water • Negative Thoughts • Coffee • Alcohol • Sugar • Salty Snacks • Streaming • Video Games • Sports • Gambling • Politics • News • Social Media • Smartphone • Shopping • Money • Lateness • Laziness • Beauty & Vanity • Gossip • Foul Language • Sharp Words • Anger • Sexual Sins Plus custom Roman Catholic, Eastern Catholic, and Greek Orthodox fasting options. TRACK YOUR PROGRESS A live countdown timer shows your elapsed time and percentage complete so you stay motivated every hour of your fast. SCRIPTURE & PRAYER Each fasting plan includes curated Bible verses, prayers, and spiritual reflections to keep your mind and heart anchored to God throughout the fast. FASTING JOURNAL Write your thoughts, temptations, and spiritual insights during each fast. Look back on your entries to see how God has worked through your sacrifice. HONESTY ACCOUNTABILITY When your fast ends, Decrease gently asks: "Have you really been fasting?" Honesty is the foundation of every spiritual journey — no judgment, only growth. RUN MULTIPLE FASTS Fast from coffee and social media at the same time. Track multiple simultaneous fasts from one unified dashboard. FLEXIBLE DURATIONS Choose from preset durations — 4 hours to 30 days — or set a fully custom length. You can even fast indefinitely until you feel called to stop. THE FIRST 10 DAYS ARE FREE Download Decrease and enjoy unlimited fasting for 10 days. After that, a simple subscription removes ads and unlocks all features. • Monthly: $11.99/mo • Yearly: $69.99/yr (saves 50%+) • Lifetime: $149.99 (pay once, fast forever) • Family & Friends: 5 Lifetime memberships for $199.99 "But when you fast, put oil on your head and wash your face, so that it will not be obvious to others that you are fasting, but only to your Father, who is unseen; and your Father, who sees what is done in secret, will reward you." — Matthew 6:17-18 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fast Days4 screens
Decrease4 screens

Verdict

The call

The clearest difference is in-app purchases: Fast Days at none against Decrease's 5. Decrease's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support 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. Decrease sells 5 in-app purchases, starting at $11.99 per month. Fast Days asks for nothing beyond the download.

UpkeepUpdate frequency

Fast Days ships an update every 2 weeks, Decrease every 3 weeks. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 8 level
Fast Days versus Decrease: the parameters behind the verdict, then further details
ParameterFast DaysDecrease
PriceFreeFree
Rating4.3 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size4 MB68 MB
Age rating4+4+
DeveloperBOLZ SOBRADOWeyrich Enterprises, Inc.

In-app purchases

None

Fast Days

No in-app purchases

5 purchases

Decrease

Subscriptions3
  • Decrease Premium Monthly$11.991 Month
  • Decrease Premium Annual$69.991 Year
  • Decrease Family & Friends Annual$174.991 Year
One-time2
  • Decrease Lifetime$149.99
  • Decrease Family Lifetime$199.99

Questions

Is Fast Days free?
Fast Days is free to download, with no in-app purchases.
Is Decrease free?
Decrease is free to download, with in-app purchases available.
Do Fast Days or Decrease have ads?
Neither Fast Days nor Decrease shows ads.
Which is updated more often, Fast Days or Decrease?
Fast Days ships an update every 2 weeks, and Decrease every 3 weeks. Most recently, Fast Days was updated on September 20, 2026 and Decrease on September 18, 2026.

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