Comparison

STR8 Fitness Workout Planner vs OpenBook

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

Head to head
About

STR8 Fitness Workout Planner

This app creates personalized, structured gym workout plans tailored to your goals, equipment, and fitness level. It adapts as you progress, offering a vast exercise library and progress tracking to guide your strength training and weight loss journey.

Highlights
  • Smart gym workout planner
  • Personalized workout plans
  • Evidence-based training methodology
  • Adaptive routines for 45+ equipment types
  • 250+ gym exercises with technique guidance
  • Workout tracker with analytics
  • Progress photo and measurement tracking
Features
Read full description

A gym workout planner that builds your program – not just tracks it. Personalized strength training from your first session. No guesswork. No random routines. STR8 builds a structured gym workout plan around your goals, equipment, and level – and keeps adapting as you get stronger. Your Workout Plan. Built Around You. STR8 is a smart gym fitness planner that generates a fully customized gym program based on your level – beginner, intermediate, or advanced. Every routine is built on an evidence-based training methodology: progressive overload, recovery balance, and structured volume – so your results are consistent and real. Whether your goal is strength training, weight lifting, muscle building, or weight loss workouts – your workout plan adapts to you from day one. 250+ Exercises. 45+ Equipment Types. Among gym exercise apps, few offer 250+ movements with this level of structure – browse the full library and find every exercise you need. STR8 supports 45+ types of gym equipment – barbells, dumbbells, cables, machines, resistance bands, and more – so your gym workout routine always fits your setup. Track Everything. See the Progress. Log every set, rep, and weight with an intuitive workout tracker. Built-in analytics show your strength progress over time. Track body weight, measurements, and progress photos to see your full transformation – all in one place. Tips That Move You Forward Get personalized workout tips and technique advice throughout your training to stay on track, avoid plateaus, and build strength week after week. STR8 Key Features: ◆ Smart Gym Workout Planner ◆ Personalized workout plan built around your goals and level ◆ Evidence-based strength training methodology ◆ Unlike random workout apps – structured progression from day one ◆ Beginner, intermediate, and advanced modes ◆Adaptive gym routine with 45+ equipment types supported 250+ Gym Exercises ◆ Full exercise library covering all major muscle groups ◆ Clear technique guidance for every movement ◆ Works for any gym setup ◆ Workout programs for women and men at every fitness level Progress Tracking & Analytics ◆ Workout tracker – sets, reps, and weight per session ◆ Strength and performance analytics ◆ Body weight, measurements, and progress photo tracking Coaching & Guidance ◆ Personalized workout tips and fitness advice ◆ Level-appropriate programming that evolves with you ◆ Like having a personal trainer – structured, consistent, and always ready 7-Day Free Trial Try everything STR8 has to offer, free for 7 days. Upgrade to Premium to unlock your full personalized gym program. Subscription options: 1 month · 3 months · 12 months Payment charged to your iTunes Account at purchase confirmation. Auto-renews unless cancelled 24+ hours before the renewal date. Manage anytime in Apple ID Account Settings. Privacy Policy: https://str8app.com/privacy-policy/ Terms of Use: https://str8app.com/terms-of-use/

About

OpenBook

Read full description

OpenBook is a clean, pen-and-paper style workout log. Built to be fast, simple, and flexible. No sign-up, no credit card required — start right away with unlimited exercises and routines, full graph access, and CSV export for your own data. Log up to 28 training days. Subscribe anytime for unlimited logging. With OpenBook, you can: Log any exercise. Track any unit or combination of units. However you train — strength, calisthenics, bodybuilding, powerlifting, yoga, or functional fitness — OpenBook fits around it. For example: • Bench Press — weight × reps • Zercher Hold — weight × time • Sled Push — weight × distance • Planche Lean — distance × time • Dead Hang — time only • Stretching — time only • Arrowhead Lunge — breaths Swipe between days Move between days with a simple swipe to review past sessions. See your training at a glance View your days across a calendar or heatmap. Plan or track anytime Start with a saved routine or log as you go. Time your rest. Add notes. Set custom rest timers and add notes for each session. View your progress with context Track your progress over time, including intensity through % max or %1RM. Compare and periodise Track two metrics on one timeline to support structured, periodised training. Edit or repeat sessions Quickly update past logs or duplicate sessions with a single tap. Download your data Export your data at any time. Back up your data to the cloud Keep your data safe and accessible. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ OpenBook Terms of Service: https://openbook.fit/terms Privacy Policy: https://openbook.fit/privacy

Screenshots

STR8 Fitness Workout Planner4 screens
OpenBook4 screens

Verdict

The call

STR8 Fitness Workout Planner and OpenBook are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. STR8 Fitness Workout Planner sells 13 in-app purchases, starting at $4.99 per 7 days and OpenBook sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

STR8 Fitness Workout Planner ships an update weekly, OpenBook every 2 weeks. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

ScorecardNo meaningful differences
STR8 Fitness Workout Planner versus OpenBook: the parameters behind the verdict, then further details
ParameterSTR8 Fitness Workout PlannerOpenBook
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyWeekly — betterEvery 2 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.1 — better15.5
Further details — not scored
Size84 MB55 MB
Age rating4+4+
DeveloperGrowthFactoryOpenArcX Pty Ltd

In-app purchases

13 purchases

STR8 Fitness Workout Planner

Subscriptions13
  • Weekly Access$4.997 Days
  • Weekly Access$6.997 Days
  • Monthly Premium$14.991 Month
Show 10 more
  • Monthly Premium7 Days trial$14.991 Month
  • Monthly Premium3 Days trial$14.991 Month
  • 3-Month Premium$29.993 Months
  • 3-Month Premium7 Days trial$29.993 Months
  • 3-Month Premium14 Days trial$29.993 Months
  • 3 Months Premium3 Days trial$29.993 Months
  • Annual Premium$59.991 Year
  • Annual Premium7 Days trial$59.991 Year
  • Annual Premium14 Days trial$59.991 Year
  • Annual Premium3 Days trial$69.991 Year
2 purchases

OpenBook

Subscriptions2
  • OpenBook Full Access - Monthly$3.991 Month
  • OpenBook Full Access - Yearly$29.991 Year

Questions

Is STR8 Fitness Workout Planner free?
STR8 Fitness Workout Planner is free to download, with in-app purchases available.
Is OpenBook free?
OpenBook is free to download, with in-app purchases available.
Do STR8 Fitness Workout Planner or OpenBook have ads?
Both STR8 Fitness Workout Planner and OpenBook show ads.
Which is updated more often, STR8 Fitness Workout Planner or OpenBook?
STR8 Fitness Workout Planner ships an update weekly, and OpenBook every 2 weeks. Most recently, STR8 Fitness Workout Planner was updated on October 25, 2026 and OpenBook on October 14, 2026.

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