Energy4Life vs The Function Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Energy4Life
Access your biofeedback data on the go using a Bluetooth device. Scan your energy levels and work with your practitioner to interpret results and receive personalized advice for improvement.
- Bluetooth biofeedback device integration
- On-the-go data scanning
- Practitioner collaboration
- Energy level assessment
- Personalized advice for improvement
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With the use of the Bluetooth E4L Biofeedback device or miHealth v2, you can now get access to your data on the go connected through our mobile app. Complete a scan wherever you are and work with your practitioner to assess the results and get provided with valuable advice to improve your energy levels.
The Function Lab
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The The Function Lab app is designed for clients of trainers who have enrolled in the The Function Lab program. The app will send push notifications and prompt clients to answer yes/no question in regards to comply with healthy habits sent by your coach. WHO CAN USE THE APP Clients can only use the app if they are working with a The Function Lab coach. If you are a The Function Lab client, please contact your coach to receive your invite and login credentials to be able to use this app. The The Function Lab app allows access to HealthKit, allowing clients to automatically pull in their activity and steps data from Apple Health to their app.
Screenshots
Verdict
The clearest difference is update cadence: The Function Lab at fortnightly against Energy4Life's every 2 months. Energy4Life's advantage is iOS requirement (12.4 vs 15.0). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Energy4Life ships an update every 2 months, The Function Lab fortnightly. The most recent releases landed on September 26, 2026 and October 1, 2026 respectively.
| Parameter | Energy4Life | The Function Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | XPO Health Limited | The Function Lab LLC |
In-app purchases
Energy4Life
No in-app purchases
The Function Lab
No in-app purchases
Questions
Is Energy4Life free?
Is The Function Lab free?
Do Energy4Life or The Function Lab have ads?
Which is updated more often, Energy4Life or The Function Lab?
Other comparisons
