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Noom and WW (Weight Watchers) are the UK's most popular weight loss apps. After testing both for 3 months, here's the honest comparison: price, approach, app quality, results, and which one is worth your money.
Price Comparison
| Plan | Noom | WW |
|---|---|---|
| Monthly cost | £39.99 | £19.95 |
| Annual cost | £479.88 | £239.40 |
| Free trial | 14 days | None |
Winner: WW — Half the price of Noom (£20 vs £40/month)
The Approach
- Noom (Psychology-Based): CBT-based daily lessons, colour food system (Green/Yellow/Red), personal coach via messaging
- WW (Points-Based): SmartPoints tracking, 200+ ZeroPoint foods (eat freely), weekly group meetings/virtual community
App Functionality
| Feature | Noom | WW | Winner |
|---|---|---|---|
| App Rating | 4.3★ | 4.7★ | WW |
| Food logging | Manual, barcode | Huge database, barcode, restaurants | WW |
| Recipe library | Limited | 4,000+ recipes | WW |
| Community features | Small groups | Connect social network + meetings | WW |
| Coaching | 1-on-1 messaging coach | Workshop coach at meetings | Tie |
3-Month Trial Results
Noom — 11 lbs lost
Daily lessons changed food mindset. Felt like homework. Coach sometimes unhelpful. Expensive at £40/month.
WW — 14 lbs lost
Easy tracking with ZeroPoint foods. Community meetings provided accountability. Meetings occasionally felt sales-y.
Success Rates (Published Studies)
- Noom: Average 7.5% body weight loss over 16 weeks
- WW: Average 6-8% body weight loss over 6 months
Tie on results. Both work if you stick to them. The main differentiator is approach and price.
Who Should Choose Which?
- Choose Noom if: You want to understand WHY you overeat, you've tried WW before and it didn't stick, or you prefer 1-on-1 coaching over groups. Budget of £40/month.
- Choose WW if: You want proven structure, community motivation, simpler tracking, and saving £240/year vs Noom.
Final Verdict
Overall Winner: WW
Half the price, better app (4.7 vs 4.3★), simpler to use, similar results, easier cancellation. Start here.
When to choose Noom
If you've plateaued on WW or struggle with mindset around food. The psychology approach genuinely changes habits.
START TODAY
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Sento earns a referral if you click through our links — this never affects our recommendations. Prices and details correct at time of publication. Updated February 2026.