Software Alternatives, Accelerators & Startups

IIFYM VS RepDB

Compare IIFYM VS RepDB and see what are their differences

IIFYM logo IIFYM

IIFYM, aka If It Fits Your Macros, is a fitness website that helps you achieve your health goals.

RepDB logo RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription
Visit Website
  • IIFYM Landing page
    Landing page //
    2023-05-11
  • RepDB Standard exercise dataset
    Standard exercise dataset //
    2026-08-15
  • RepDB Starter tier
    Starter tier //
    2026-08-15

RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps โ€” not a subscription, not a rate-limited API. You download the data once and own it: JSON (and SQLite on the higher tier), WebP images, and full EN/DE/ES translations, with no per-request billing and no dependency on our servers staying up.

A free tier includes 250 exercises with flat-style 512ร—512 images, attribution-licensed for commercial in-app use. The Starter tier ($199) adds the full catalog in classic white-background style. Standard ($399) adds transparent 1024px images, looping animations, exercise relations (similar/progressions/regressions), workout templates, and embeddings โ€” exclusive to that tier.

Every exercise includes muscle-group highlighting, equipment/muscle icons, MET values, and safety/goal tags. Compared to GIF- or JPG-based competitor APIs, RepDB images are transparent WebP with no watermarks, so they drop into any app UI without a white box around them.

IIFYM

Website
iifym.com
$ Details
-
Platforms
-
Release Date
-

RepDB

Website
repdb.co
$ Details
freemium $299 / One-off
Platforms
Web Mobile
Release Date
2026 July

IIFYM features and specs

  • Flexibility
    IIFYM, or If It Fits Your Macros, allows you to eat any food you desire as long as it fits within your prescribed macronutrient targets, providing flexibility in your diet.
  • Variety
    Due to its flexible nature, IIFYM permits a broader assortment of food choices, potentially improving adherence to a dietary plan by preventing feelings of restriction.
  • Focus on Macronutrients
    IIFYM encourages awareness and tracking of macronutrients (carbohydrates, proteins, fats) which can lead to a better understanding of nutritional content in foods.
  • Customizable
    This approach allows for customization based on individual preferences, goals, and dietary restrictions, making it suitable for a wide range of people.

Possible disadvantages of IIFYM

  • Can Overlook Nutritional Quality
    Focusing solely on macronutrients can sometimes lead to neglecting the nutritional quality of foods, potentially leading to deficiencies in micronutrients.
  • Requires Tracking
    IIFYM necessitates diligent tracking of food intake, which can be cumbersome and time-consuming for some individuals.
  • May Oversimplify Nutrition
    The focus on macros can oversimplify the complexities of nutrition, ignoring factors like food source, preparation methods, and individual health conditions.
  • Potential for Overconsumption
    The flexibility and inclusion of calorie-dense foods could lead to overconsumption, especially if portion sizes are not carefully managed.

RepDB features and specs

  • WebP Format Benefits
    start+peak exercise images
  • JSON
    relations, metadata, equipment
  • Transparency
    transparent background
  • Animations
    Animated loops in paid tier

IIFYM videos

We Tried the Flexible Diet (IIFYM) for 30 Days, Here's What Happened

More videos:

  • Review - IIFYM Better For Micronutrients? Study Review
  • Review - Dietitian Reviews IIFYM | Should You Try Flexible Dieting? | The Truth About Counting Macros

RepDB videos

No RepDB videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to IIFYM and RepDB)
Health And Fitness
86 86%
14% 14
Sport & Health
100 100%
0% 0
Static Assets
0 0%
100% 100
Maps
100 100%
0% 0

Questions & Answers

As answered by people managing IIFYM and RepDB.

What makes your product unique?

RepDB's answer:

RepDB is sold as a one-time download, not a metered API โ€” you own the JSON/SQLite data and WebP images outright, with no rate limits, no per-request billing, and no risk of the vendor cutting off access. It's also the only dataset in this space with EN/DE/ES translations, transparent (alpha-channel) images with no watermark, muscle-group highlighting, safety/goal tags, and looping animations on the higher tier.

What's the story behind your product?

RepDB's answer:

RepDB grew out of a consumer workout app its creator was building solo. Sourcing exercise images and data meant either paying for a subscription API with usage caps and no caching rights, or producing everything from scratch. The illustrated, multi-language dataset was built for us first, then split out as its own product once it became clear other indie developers had the same problem and preferred to buy the data outright rather than rent it through an API.

Why should a person choose your product over its competitors?

RepDB's answer:

Most alternatives are subscription APIs โ€” you pay monthly, you're capped on requests, and ExerciseDB's terms of use explicitly forbid caching or storing the data at all, so every image render is a live paid API call. RepDB is the opposite: pay once, download the files, self-host with zero ongoing dependency. It's also the only option offering true DE/ES localization and transparent images instead of a white box behind every exercise.

How would you describe the primary audience of your product?

RepDB's answer:

Solo developers and small teams building fitness or workout-tracking apps (iOS, Android, web) who need licensed exercise images and structured exercise data, but don't want to build their own media pipeline or depend on a rate-limited third-party API.

User comments

Share your experience with using IIFYM and RepDB. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, IIFYM seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

IIFYM mentions (4)

  • can you still lose weight while eating what you want? (cw: ed mentions)
    The only thing that needs to happen to lose weight is for you to be in a caloric defecit. If you are eating less calories than your body needs to maintain its' weight, you'll lose weight. It's just a fact. So, if that looks like eating mcdonalds nuggets and a small fry with a diet coke for lunch, that's what it looks like. iifym.com is a good website I was reccommended to check out by a nutrionsit. She said it's... Source: over 3 years ago
  • I'm slightly concerned about losing my muscle
    No wonder you're so damn weak. You're on a crash diet. You should be eating no less than 300 calories below maintenance for sustainable weight loss, and your diet is roughly 1200 calories below maintenance. Check out iifym.com and rethink those macros. Source: over 3 years ago
  • Is macro counting a womens thing?
    Iifym.com was where I got started first with Anthony's purchasable macro breakdown, then Mike Vacanti's got a website too (Mike's Macros maybe?), and then Mike Matthews website is LegionAthletics.com which has gotten a bit too supplement-y for my taste but I really like his books and I'm actually starting his 5-Day workout split for women this week. Source: almost 4 years ago
  • Iโ€™m late to the the party. Boot > Tow truck driver > Personal trainer > got married, did a thing, and COVID got me fucked up > Now a mental health professional
    Sure! All I did was add some crippling depression to a toxic (previous) relationship with a side of overcoming addiction. As far as food goes, use this. Source: about 4 years ago

RepDB mentions (0)

We have not tracked any mentions of RepDB yet. Tracking of RepDB recommendations started around Jul 2026.

What are some alternatives?

When comparing IIFYM and RepDB, you can also consider the following products

MuscleWiki - Understand your body, simplify your workouts

Macrosinc - Macrosinc is a fitness and healthy nutrition website that help people in gaining fitness and health-related guides.

BodyBuilding Macro Calculator - BodyBuilding Macro Calculator is a macronutrient measuring calculator that tells you how many calories, proteins, and carbs you should take according to your goals.

Healthy Eater - Healthy Eater is a health and fitness website that guides you in achieving your fitness goals in the best possible way.

KatyHearnfit Macro Calculator - KatyHearnfit Macro Calculator is a macronutrient estimating tool that evaluates and suggests the number of calories, fats, and carbs that you must take on a daily basis based on the information it takes.

Macro Calculator - Macro Calculator is a macronutrient quantifying calculator that tells you how many calories, proteins, and carbs you should take according to your goals.