Comparison

Allurion vs IFSO

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

Head to head
About

Allurion

This app supports a weight loss program by tracking weight, steps, sleep, and exercise. It facilitates data sharing with a healthcare team, enables messaging and telehealth, and offers an AI coach for personalized guidance.

Highlights
  • Weight, step, sleep, and exercise tracking
  • Data sharing with healthcare team
  • In-app messaging and telehealth
  • AI weight loss coach
  • Library of program articles
  • HealthKit integration
Features
Read full description

The companion app for the Allurion weight loss program. This app syncs with your Allurion Connected Scale and Health Tracker, and easily tracks your weight, steps, sleep and exercise, and enables you to share data with their Allurion healthcare team, message Allurion Clinics, participate in video Telehealth calls, and easily request support. Participants in the Allurion Program have access to a library of articles designed help them in the program and their weight loss journey. Users also have access to Coach Iris, Allurion’s AI weight loss coach, for personalized guidance and motivation. Health App Integration: This app stores your weight data using HealthKit, so you can use it in Apple Health and other iOS apps.

About

IFSO

Features
Read full description

The International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) is a Federation composed of national associations of bariatric surgeons and Integrated Health professionals. Currently, there are 64 official member societies of IFSO. There are also individual members from countries that thus far have not formed a national association. IFSO is a scientific organization that brings together surgeons and integrated health professionals, such as nurse, practitioners, dieticians, nutritionists, psychologists, internists and anesthesiologists, involved in the treatment of morbidly obese patients. One of IFSO’s main goals is to support its members in aspects directly related to their profession. One of IFSO’s main activities is the organization of the yearly World Congress, which provides a forum to exchange knowledge on surgical treatment of severely obese patients, to present new techniques, research and concepts, and to meet the experts in the field.

Screenshots

Allurion4 screens
IFSO4 screens

Verdict

The call

Allurion and IFSO are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Allurion ships an update every 3 weeks, IFSO monthly. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

ScorecardNo meaningful differences
Allurion versus IFSO: the parameters behind the verdict, then further details
ParameterAllurionIFSO
PriceFreeFree
Rating4.9 (776 ratings) — better—
Positive reviews64.6% of reviews—
Number of ratings776 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size97 MB20 MB
Age rating17+4+
DeveloperAllurion Technologies,inc.IFSO INTERNATIONAL FEDERATION FOR THE SURGERY OBESITY AND METABOLIC DISORDERS

Bugs and requests

Allurion

Reported bugs

5 issues
  • App freezes or crashes frequently
  • Incorrect weight and body metric calculations
  • Sync issues between app and connected devices
  • User data loss after updates
  • Persistent connection problems with Bluetooth scale

Requested features

5 requests
  • Add more exercise tracking options
  • Improve data sync with third-party apps
  • Restore detailed body composition tracking
  • Provide manual weight entry option
  • Enhance customization and personalization

IFSO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Allurion

No in-app purchases

None

IFSO

No in-app purchases

Questions

Is Allurion free?
Allurion is free to download, with no in-app purchases.
Is IFSO free?
IFSO is free to download, with no in-app purchases.
Do Allurion or IFSO have ads?
Neither Allurion nor IFSO shows ads.
Which is updated more often, Allurion or IFSO?
Allurion ships an update every 3 weeks, and IFSO monthly. Most recently, Allurion was updated on October 16, 2026 and IFSO on October 1, 2026.

Other comparisons