Dark patterns in calorie tracker paywalls

What “dark pattern” means here

Harry Brignull’s original 2010 taxonomy is still the canonical reference. For calorie trackers specifically, the patterns we see most often are:

1. Bait-and-switch on free features. A feature is free at signup; six months later, after the user has built a habit around it, it goes behind a paywall.
2. Confirmshaming. “Are you sure you want to give up on your goal?” on the cancel screen.
3. Roach motel. Easy to subscribe; multi-step phone-the-mothership cancellation.
4. Sneak into basket. Auto-enrolment in upgraded tiers after a “free trial.”
5. Forced continuity. Trial periods that auto-charge with insufficient warning.

The four leading commercial trackers in 2025 each cycle through subsets of these. We’ll go app by app.

MyFitnessPal

Bait-and-switch on barcode scanner. The barcode scanner was free for over a decade. In 2024 it became Premium-only. Users who built logging habits around scanning every meal had to either subscribe (~$80/yr) or rebuild their workflow.

Confirmshaming on cancel. The cancellation flow shows a graph titled “your progress” with hand-drawn-style annotations and a “Are you sure? You’ve logged 247 days.” prompt. Functional purpose: to leverage sunk-cost bias.

Roach motel. App Store / Play Store cancellations work directly. Cancellations from the web require navigating three menus and a confirmation. We have timed both: the in-app cancel takes ~25 seconds; the web cancel takes 90+.

Trial-to-paid auto-renew. The default 30-day trial converts to a charged annual subscription unless cancelled in app at least 24 hours before expiry. Notification 24 hours before is a single push that’s easy to miss.

Lose It!

Sneak into basket. Lose It!‘s premium tier (“Lose It! Premium”) quietly became “Lose It! Premium” plus an auto-bundled “Embrace coaching” tier in mid-2024. Existing subscribers got both; the price went up; the upgrade was disclosed in a single email. We have heard from readers who didn’t notice for months.

Confirmshaming. The “Snap It” feature (cloud photo recognition) loops a paywall modal every 5 uses on the free tier. The modal text is “Don’t fall behind on your goal — upgrade to keep snapping.”

Forced continuity. Annual auto-renew is enabled by default; the renewal notification is a single email 7 days out, no in-app prompt.

MacroFactor

MacroFactor has fewer dark patterns than the others. We will say so plainly. The subscription is upfront; the cancellation flow is not adversarial.

The patterns it does have:

Sunk-cost framing. The “you’ve been logging for X days” counters are prominently displayed and used in retention messaging.

Trial-window-edge. The 14-day trial is a real trial, but the conversion notification is 24 hours pre-charge, which we’d argue should be 72.

We list MacroFactor here for completeness but it’s not in the same league as the others.

Noom

Noom is the worst offender of the four. The pattern catalogue includes:

Quiz-funnelling. The signup flow is a 60-question quiz that algorithmically generates a subscription price and “limited time” offer. The price is not actually limited time; reload the page and a new quiz with the same outcome appears.

Anchor-and-sale. The shown subscription price is anchored against a higher “regular” price that we have never observed actually charged. The “discount” is permanent.

Confirmshaming, intense. Cancellation flows include a “Are you giving up on yourself?” prompt with imagery of a downward arrow. Multiple clinical psychologists have written about this specific pattern.

Roach motel. Web-based cancellation only, 5 menus deep, with multiple “Are you sure?” prompts.

Auto-charge after trial. A 7-day trial auto-converts to a charged annual subscription.

Class-action. Noom settled a class-action over its auto-renewal practices in 2022 (Noom, Inc. v. various consumers). Read the settlement.

How to defend yourself

A short checklist before signing up for any of these:

1. Does the trial auto-convert? When? Set a calendar reminder for 48 hours before.
2. Is the cancellation flow in-app or web-only? If web-only, that is a yellow flag.
3. Do they offer a single-month subscription, or do you have to pay annually upfront?
4. Is the “discounted” price anchored to a price that’s ever actually charged?
5. Are the features you signed up for guaranteed to remain free, or in the freemium tier?

If you cannot easily get answers to all five, pass.

What we’d like to see

Regulatory:

• The FTC’s “click-to-cancel” rule, when fully in force, addresses the roach-motel pattern. Worth supporting.
• The EU’s Digital Services Act addresses some of these but enforcement is uneven.

Industry:

• Apple’s auto-renewal disclosures are decent for App Store subscriptions. The web-cancellation gap (where the App Store can’t help you cancel a web-billed subscription) is a problem.
• A FOSS-style approach where there’s no paywall to engineer dark patterns for is — frankly — the cleanest answer.

What we use

We use OpenNutriTracker. There are no paywalls; there is nothing to dark-pattern.

References

• Brignull, H. (2010 onwards). Deceptive design: deceptive.design.
• FTC click-to-cancel rule: ftc.gov
• Noom class-action settlement: search EDNY court records.
• MyFitnessPal audit
• Noom audit