Comparison

Greenlight vs Perform24

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

Head to head

About

Greenlight

Features

Read full description

Greenlight is a research-backed mobile application that helps users monitor cognitive readiness, fatigue, and overall physiological well-being. By providing personalized insights, Greenlight promotes greater self-awareness and supports informed behavioral changes that can enhance performance, health, and resilience.

About

Perform24

Features

Read full description

For members of Perform24 to reserve their place in a class, sign up for gym events, and general account management like updating headshots and credit card on file.

Screenshots

Greenlight4 screens

Perform244 screens

Verdict

The call

The clearest difference is ads: Greenlight at none against Perform24's shown. Perform24's advantage is update cadence (every 4 weeks vs every 18 months) and iOS requirement (15 vs 17.2). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Greenlight ships an update every 18 months, Perform24 every 4 weeks. The most recent releases landed on October 11, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 3 level

Greenlight versus Perform24: the parameters behind the verdict, then further details
Parameter	Greenlight	Perform24
Price	Free	Free
Update frequency	Every 18 months	Every 4 weeks — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	17.2	15 — better
Further details — not scored
Size	339 MB	90 MB
Age rating	17+	4+
Developer	Design Interactive Inc.	Perform24

In-app purchases

None

Greenlight

No in-app purchases

None

Perform24

No in-app purchases

Questions

Is Greenlight free?

Greenlight is free to download, with no in-app purchases.

Is Perform24 free?

Perform24 is free to download, with no in-app purchases.

Do Greenlight or Perform24 have ads?

Perform24 shows ads; Greenlight does not.

Which is updated more often, Greenlight or Perform24?

Greenlight ships an update every 18 months, and Perform24 every 4 weeks. Most recently, Greenlight was updated on October 11, 2026 and Perform24 on September 15, 2026.