Comparison

iResistors vs TrueFire Guitar Lessons

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

Head to head
About

iResistors

This app helps users learn basic electronics by simulating resistor color band identification. Swipe through color bands to see the Ohm value change in real-time. It's a useful tool for students studying electronics.

Highlights
  • Simulates resistor color bands
  • Displays Ohm values
  • Interactive color band swiping
  • Educational tool for electronics
  • Real-time value updates
Features
Read full description

Swipe on bands.. Colors & Ω's and will change! You ca swipe on colored bands on resistor, and You will see colors changing and the final value in Ohm will be displayed. Useful to learn basic electronics at school.

About

TrueFire Guitar Lessons

Access over 80,000 video guitar lessons, 30,000 tabs, and 20,000 jam tracks. Learn from hundreds of renowned artists and educators across all levels and styles, including blues, jazz, rock, and acoustic guitar.

Highlights
  • 80,000+ video guitar lessons
  • 30,000+ guitar tabs
  • 20,000+ jam tracks
  • Courses for all levels and styles
  • Instruction from 400+ top artists
  • 14-day All Access free trial
Features
Read full description

Play guitar or want to learn how to play guitar? Download TrueFire’s app to your iOS device for access to over 80,000 video guitar lessons, 30,000 guitar tabs, and 20,000 jam tracks at your fingertips. TrueFire’s library of 1,800+ guitar courses covers all levels, techniques, and styles of blues guitar, jazz guitar, rock guitar, country guitar, acoustic guitar, fingerstyle guitar, and other guitar styles. Whether you're a beginner just learning how to play guitar or you're an advanced pro, you can learn from the best in the biz: Matt Schofield, Larry Carlton, Robben Ford, Tommy Emmanuel, Steve Vai, Pat Martino, Stu Hamm, Alex Skolnick, Dweezil Zappa, Johnny Hiland, Mike Zito, Redd Volkaert, David Grissom, Andy Timmons, and over 400 other top artists and educators. New to TrueFire? Welcome aboard! Join TrueFire for free and get a 14-day trial of All Access - unlimited streaming access to all 80,000+ video guitar lessons, including tab, notation, and jam tracks. You'll also get a free downloadable guitar course, 10 Guitar Licks You MUST Know, for your offline learning pleasure. Questions? Please visit our support desk to review our knowledge base and/or contact us. Practice Smart, Play Hard. TrueFire All Access Subscription. Term: 1 month or 1 year. Payment will be charged to iTunes Account at confirmation of purchase
. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period
. Subscriptions may be managed by the user and auto-renewal may be turned off by going to Account Settings after purchase
. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Link to Terms & Conditions: https://truefire.com/terms Privacy Policy: https://truefire.com/privacy-policy At TrueFire, we pride ourselves on being able to offer the best music instruction to anyone, anytime, anywhere in the world, including those with disabilities or impairments. We’re proud to announce that we’ve worked hard to update our app to make learning with TrueFire even easier for those who use the VoiceOver Accessibility feature.

Screenshots

iResistors3 screens
TrueFire Guitar Lessons4 screens

Verdict

The call

The clearest difference is price: TrueFire Guitar Lessons at Free against iResistors's $0.99. TrueFire Guitar Lessons also leads on review sentiment (58% vs 27%) and ratings volume (15K vs 1). iResistors's advantage is in-app purchases (none vs 23) and rating (5.0 vs 4.7). On ads 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

TrueFire Guitar Lessons is free to download; iResistors costs $0.99 up front. TrueFire Guitar Lessons sells 23 in-app purchases, starting at $29.99 per month. iResistors asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iResistors holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: TrueFire Guitar Lessons has 15K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 27% of iResistors's written reviews are positive against 58% of TrueFire Guitar Lessons's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

iResistors ships an update every 10 months, TrueFire Guitar Lessons every 2 months. The most recent releases landed on September 30, 2026 and October 24, 2026 respectively.

Scorecard9 real differences · 1 level
iResistors versus TrueFire Guitar Lessons: the parameters behind the verdict, then further details
ParameteriResistorsTrueFire Guitar Lessons
Price$0.99Free — better
Rating5.0 (1 ratings) — better4.7 (15K ratings)
Positive reviews26.7% of reviews57.7% of reviews — better
Number of ratings115K — better
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhoneiPhone, iPad, iPod, Apple TV — better
Requires iOS16.413.0 — better
Further details — not scored
Size3 MB179 MB
Age rating4+4+
DeveloperGian Enrico ContiTrueFire

Customer experience

iResistors

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive26.7%
Neutral20.0%
Negative53.3%

TrueFire Guitar Lessons

All ratings14,804 ratings
Positive94.2%
Neutral2.7%
Negative3.1%
Written reviews487 reviews
Positive57.7%
Neutral11.7%
Negative30.6%

Bugs and requests

iResistors

Not enough reviews yet to summarise bugs or requests.

TrueFire Guitar Lessons

Reported bugs

4 issues
  • App crashes and freezes frequently
  • Purchased content not accessible
  • Sync issues between app and website
  • Compatibility problems with iOS updates

Requested features

4 requests
  • Improved app stability and performance
  • Better navigation and user experience
  • Ability to create custom playlists
  • Seamless cross-device syncing

In-app purchases

None

iResistors

No in-app purchases

23 purchases

TrueFire Guitar Lessons

Subscriptions2
  • All Access Monthly Plan$29.991 Month
  • All Access Annual Plan$119.991 Year
One-time21
  • Learn Guitar: First StepsFree
  • Learn Bass 1: 1st Step for BegFree
  • XXV on FireFree
Show 18 more
  • Top 50 Multi-Track Audio JamsFree
  • Slow Blues Principles Vol. 1$9.99
  • Learn Guitar: Next Steps$9.99
  • Country Guitar Survival Guide: Lead Edition$29.99
  • Ten Gallon Guitar$29.99
  • Fingerstyle Blues Factory$29.99
  • 50 Blues Rhythms$29.99
  • Fingerstyle Milestones$29.99
  • Guitar Zen: CAGED$29.99
  • Beginner Blues-Rock Soloing$29.99
  • Blue Highways$29.99
  • Street Theory For Guitarists$29.99
  • Creative Arpeggio Design$29.99
  • Standards Edition$39.99
  • Solo Factory: Texas Blues$39.99
  • Shades of Blues$39.99
  • Dweezology: Fretboard Freedom$49.99
  • All Access: Annual$249.99

Questions

Is iResistors free?
iResistors costs $0.99, with no in-app purchases.
Is TrueFire Guitar Lessons free?
TrueFire Guitar Lessons is free to download, with in-app purchases available.
Which has better reviews, iResistors or TrueFire Guitar Lessons?
iResistors is rated higher. iResistors averages 5.0 out of 5 from 1 ratings, while TrueFire Guitar Lessons averages 4.7 from 15K ratings.
Do iResistors or TrueFire Guitar Lessons have ads?
Neither iResistors nor TrueFire Guitar Lessons shows ads.
Which is updated more often, iResistors or TrueFire Guitar Lessons?
iResistors ships an update every 10 months, and TrueFire Guitar Lessons every 2 months. Most recently, iResistors was updated on September 30, 2026 and TrueFire Guitar Lessons on October 24, 2026.

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