Comparison

[solidcore] vs Forge

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

Head to head
About

[solidcore]

This app allows members to find and book pay-as-you-go fitness classes. Users can connect with friends, see their class schedules, book them into classes, and share their own class activities. Track your fitness journey and stay motivated by seeing your class completion history.

Highlights
  • Find and book classes
  • Pay-as-you-go class sign-ups
  • Connect with friends
  • See friends' class schedules
  • Book friends into classes
  • Share class activities
  • Track class completion
Features
Read full description

[solidcore] is high-intensity, low-impact strength training on a custom-built reformer. 50 minutes. Stronger for it. Book classes - See the schedule at every studio, book in a few taps - Choose your class: Starter50 for your first class, Foundation50 to build the basics, Signature50 for the full [solidcore] experience. - Filter by coach, time and studio. New to [solidcore]? - Start with 2 weeks unlimited, right in the app. - Take 4+ classes with a new client offer and unlock 15% off a monthly membership. - Buy a membership, a 5- or 10-class pack, or a single class. - See your remaining classes at a glance. - Members get early access to each month's schedule. Your account - Manage your membership, payment method and bookings. - Track every class you've taken. - Core Collective: members-only perks from our partners, right in the app. It doesn't get easier. You just get stronger. California Privacy Notice: https://privacy.solidcore.co/privacy-policy#california-privacy-notice Do Not Sell My Personal Information: https://privacy.solidcore.co/opt-out See our Privacy Policy to access these links.

About

Forge

Features
Read full description

Forge Client is the companion app for clients working with a Forge-certified coach. Every session your trainer logs shows up here automatically — with the sets, reps, weights, form videos, and photos from the floor — so you always know where you stand. WHAT YOU GET • Today Dashboard — Your last session, active goals, streak, and a one-tap weigh-in and daily check-in. • Goals With Real Progress — Set a target like "bench 225 × 1" and watch a three-tier progress calculation track every qualifying lift, every estimated one-rep max, and every personal record. No more staring at 0% until you hit the exact number. • Strength Journey — A session-by-session breakdown of any exercise, complete with photos, form check videos, and estimated 1RM trends so you can see how far you've come. • Personal Records, Automatically — Every PR your trainer logs is stamped, charted, and ready to share. • Check-Ins That Matter — Quickly log nutrition, sleep, stress, soreness, and energy. Your trainer sees the signal and adjusts your program. • Weight Journey — Log your weight when you want, see the trend line, and connect it to your training volume. • Session Media Gallery — Every photo and video from the floor, searchable by exercise. • Self-Log Workouts — Train solo? Type or voice-log a workout and Forge's AI parses it into structured sets, weights, and reps — instantly credited to your training history. HOW IT WORKS Your trainer sends you a sign-in link by email. Tap it once and you're in — no passwords, no setup. From there, every session, PR, and goal your trainer logs flows straight to your phone. Forge Client is designed to live beside your trainer, not replace them. It's the record book you both share. REVIEWER NOTE Tap the lightning bolt on the sign-in screen 10 times to enter demo mode with sample data. Have questions or need your data removed? Email support@trainwithforge.fit. Paste each into App Store Connect → App Information / Version Information for the iOS Forge Client app.

Screenshots

[solidcore]4 screens
Forge4 screens

Verdict

The call

The clearest difference is ads: Forge at none against [solidcore]'s shown. Forge also leads on update cadence (daily vs every 6 weeks). [solidcore]'s advantage is chart position (#193 vs unranked). On price, in-app purchases, device support and iOS requirement 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

[solidcore] ships an update every 6 weeks, Forge daily. The most recent releases landed on November 1, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 8 level
[solidcore] versus Forge: the parameters behind the verdict, then further details
Parameter[solidcore]Forge
PriceFreeFree
Rating4.9 (29K ratings) — better—
Positive reviews21.1% of reviews—
Number of ratings29K — better—
Update frequencyEvery 6 weeksDaily — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree—
Best chart rank#193 — better—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better17.0
Further details — not scored
Size70 MB16 MB
Age rating4+4+
Developer[solidcore]Lightbox Studios LLC

Bugs and requests

[solidcore]

Reported bugs

3 issues
  • Inconsistent class credit tracking
  • Unreliable class cancellation and refund process
  • Frequent crashes and loading issues

Requested features

4 requests
  • Ability to see class package balances
  • Waitlist position visibility
  • Option to add classes to calendar without full access
  • Improved app stability and performance

Forge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

[solidcore]

No in-app purchases

None

Forge

No in-app purchases

Questions

Is [solidcore] free?
[solidcore] is free to download, with no in-app purchases.
Is Forge free?
Forge is free to download, with no in-app purchases.
Do [solidcore] or Forge have ads?
[solidcore] shows ads; Forge does not.
Which is updated more often, [solidcore] or Forge?
[solidcore] ships an update every 6 weeks, and Forge daily. Most recently, [solidcore] was updated on November 1, 2026 and Forge on October 8, 2026.

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