Strongbro vs StrengthLog (2026): Voice Logging vs Programs

Two workout trackers, two different ideas of what a log is for. StrengthLog is a program-first tool from a seven-person team in Lund, Sweden, with a free tier its developer describes as giving “90% away”. Strongbro is a voice-first log that keeps your data on your iPhone and charges a flat $14.99 a year. This page sets the two side by side using StrengthLog's own site, terms and help desk as the source for every StrengthLog claim; anything we could not confirm there is marked unverified.

Verdict

StrengthLog is the right pick for the lifter who follows written programs. Its catalog holds over 200 programs and routines for powerlifting, bodybuilding and general strength, the free tier allows unlimited workouts with no ads, it runs on iOS, Android and the web, and its US App Store listing shows 4.9 stars on roughly 3,600 ratings. The costs are an account after the trial period, data stored on the developer's servers, and $109.00 a year for the full Premium feature set.

Strongbro is the right pick for the lifter who wants logging to cost seconds. You tap the mic, say “bench 80, three sets of ten”, and the sets are parsed, shown for review and saved. It understands 30+ languages, tracks weight-at-reps and estimated 1RM records automatically, and stores everything on the iPhone with optional iCloud sync and no account. It costs $14.99 a year or $19.99 once, after a 3-day trial. It does not have a program library, an Android version or a Strength Level percentile.

If you have never been able to keep a log because typing between sets is the part you skip, Strongbro fixes that. If your training is organised around a program and you want the app to hold the plan, StrengthLog is built for exactly that.

Feature table

Two things to say plainly about that table. First, StrengthLog is the more complete product on paper: more platforms, more integrations, more program content. Second, the “unverified” rows are not criticisms. They mark what StrengthLog's public documentation does not say, which is a different thing from what the app cannot do.

Pricing table

Prices are as displayed on the US App Store on 11 September 2026 and can change.

StrengthLog's Premium unlocks the full program catalog, advanced statistics, the muscles-worked anatomy map over a period, unlimited goals and streaks, sharing workouts and programs with other users, and per-set percentage of 1RM, RPE and reps in reserve. Its help desk adds monthly and yearly training reports, an RPE calculator, and the program builder's percentage and RPE options.

The honest reading: if manual logging and basic stats are all you need, StrengthLog costs nothing and stays ad-free. If you want the paid feature set, a year of StrengthLog Premium costs roughly seven times a year of Strongbro, and there is no way to buy StrengthLog once. Subscriptions are also tied to your Apple ID or Google account and cannot be moved between iOS and Android.

Privacy and where your data lives

This is the sharpest difference between the two apps, and it is worth reading StrengthLog's own words rather than ours.

StrengthLog requires an account. Its terms and privacy policy state: “It is possible to access the Service without registering a user account for a trial period as shown in the Service. Once the trial period has expired, you need to register a user account to be able to continue to use the Service.” The site FAQ explains why: “Without an account, your workout data would only be saved locally on your phone. With an account, we can keep a copy in the cloud.”

On storage, the app privacy policy (version 3.0, updated August 2026) says: “All data connected to your account is stored on our servers (if – and only if – you use the app connected to the Internet, so that a backup is possible)”. On where those servers and their processors sit: “We use service providers, which also may use sub-contractors, that are established in third countries outside the EU/EEA.” The policy lists what counts as user-generated data: “logged workouts, workout summaries, personal records, Estimated 1RMs, Strength Levels, connections with other users, participation and progress in challenges”, and separately “Picture, video, and audio material which includes video footage of you, your picture or voice, for example videos, profile pictures or progress pictures that you upload in our App.”

The controller is Styrkelabbet AB in Sweden, operating under GDPR with the Swedish authority IMY as supervisor. Recipients named in the policy include app stores, social login platforms, other users through social features and challenges, opt-in scientific research, partners and IT service providers. Deleting an account is possible in the app, but the help desk notes you will have to email support to complete it, “just as a safety measure”, after which all data is deleted and not restorable.

The App Store privacy card, which StrengthLog declares itself, lists data linked to you as name, email address, user ID and crash data, used for analytics, product personalisation and app functionality. Usage and performance data are collected but not linked to you. On Apple Health, the developer says it “only share[s] the information you request us to share – the app does not receive any data in return”.

Strongbro's model is simpler to describe. Workouts, records, body measurements and physique scans are stored on your iPhone; if you turn on iCloud sync they are also stored in your own iCloud account, under Apple's encryption, where we cannot read them. There is no Strongbro account and no server that holds your training history. Voice clips are processed for parsing through our proxy and discarded, and physique photos are processed for scoring and not retained. Export is built in, and deleting the app takes the on-device data with it.

Neither model is wrong. StrengthLog's account gives you a cloud backup, cross-device sync and social features, and it is transparent about the trade. Strongbro's on-device model means the only backup is your own iCloud, and there is no web login to fall back on. Choose the one whose failure mode you would rather live with.

Who should pick StrengthLog

• You follow written programs. StrengthLog's 200+ program catalog and its builder with percentage-of-1RM and RPE programming are the core of the app. Strongbro has nothing comparable.
• You train on Android, or on more than one platform. StrengthLog runs on iOS, Android and the web. Strongbro is iPhone only.
• You want a free log with no ads. StrengthLog's free tier includes unlimited workouts, 500+ exercises, PR tracking and Apple Health sharing, with free email support from the Sweden-based team.
• You want to see how you rank against other lifters. Strength Levels place you from Beginner to Elite as a percentile against other StrengthLog users, per exercise, with a shareable image.
• You value a long track record. StrengthLog launched in 2018, is on version 8.1.2, and shows 4.9 stars on roughly 3,600 US ratings. Strongbro cannot claim a comparable rating base.
• You want Apple Watch and Apple Health. Both are listed for StrengthLog, though what the watch app does is not documented publicly.

Who should pick Strongbro

• Typing between sets is why your log dies. One sentence into the mic logs the session. Every parsed set is shown for review with steppers, so a misheard weight is a two-tap fix and nothing is logged silently.
• You train in a language other than English. The interface ships in 31 languages, and voice input resolves “sentadillas”, “Kniebeugen” and “клякания” to squats. StrengthLog's listing is English only.
• You do not want an account. There is nothing to register. Your history lives on your iPhone and, if you choose, in your own iCloud.
• You want records tracked without asking. Every saved set is checked against your history for weight-at-reps and estimated 1RM records, whether it arrived by voice or keypad. See personal records.
• You want one honest photo score over time. The physique scan returns an overall score and per-body-part notes, stored only on your device.
• You would rather pay once. $19.99 lifetime, or $14.99 a year, after a 3-day trial.

If you are moving from a program-based app, our guide on how to log a strength training program covers what to record per set so the log still judges the program, even without a catalog holding the plan.

Where they overlap

Both apps track personal records and estimate a one-rep max, both keep a per-exercise history, and both have a rank-like feature. The differences are in the mechanics. StrengthLog's PRs are per exercise and rep count, with per-set estimated 1RM as a Premium feature; Strongbro's weight-at-reps and estimated 1RM records are computed on every save, included in the price. StrengthLog's Strength Levels compare you with other users and need your sex, age and bodyweight; Strongbro's ranks count only sessions logged and compare you with nobody.

For a fuller look at StrengthLog on its own terms, read our StrengthLog review. For what the mic actually parses, see voice logging.

The bottom line

StrengthLog is a generous, well-documented program tracker with a serious free tier, broad platform support and a clear privacy policy that tells you your data goes to its servers and, through processors, outside the EU/EEA. Its Premium tier is expensive at $109.00 a year with no lifetime option, and logging is manual, in English or Swedish.

Strongbro is narrower and faster. It logs by voice in 30+ languages, tracks records automatically, scores physique photos, and keeps everything on your iPhone with no account, for $14.99 a year or $19.99 once. It has no program catalog, no Android app and no Apple Watch app.

Choose StrengthLog for the programs and the platforms. Choose Strongbro for the speed and the privacy.

Get Strongbro on the App StoreFree for 3 days. $19.99 once for lifetime.

Get Strongbro on the App StoreFree for 3 days. $19.99 once for lifetime.