Comparison

Crear QR vs Frequency Generator

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

Head to head
About

Crear QR

Easily generate custom QR codes with adjustable precision. This tool allows for personalized code creation for various uses.

Highlights
  • Custom QR code creation
  • Adjustable precision levels
  • Personalized code generation
Features
Read full description

Crear QR es una aplicación para la creación de código QR personalizados y con distintos niveles de precisión.

About

Frequency Generator

Features
Read full description

Make sound part of your daily routine. With Sona, you can fall asleep faster, focus deeper, relax easier, or meditate longer—using science-inspired binaural beats you can fully customize, layered with immersive ambient sounds. Highlights • 4 modes: Sleep, Focus, Relax, Meditate — each with curated starter presets. • Binaural beats: Pick the beat frequency (e.g., 2–40 Hz) for your goal. Best experienced with stereo headphones. • Full frequency control: Choose Alpha, Beta, Delta, Gamma, SMR (≈12–15 Hz) or type any custom value. • Ambience mixer: Rain, forest, fire, ocean, wind, pink noise, and more — blend your perfect soundscape. • Background + Lock Screen: Keep playing with the screen off and control from the Lock Screen. • Timer: Set your session length; Sona stops automatically. • Clean, distraction-free design: Create, save, and reuse your favorite sessions in seconds. Brainwave primer • Delta (~0.5–4 Hz): Deep sleep and recovery • Theta (~4–8 Hz): Creativity and deep relaxation • Alpha (~8–12 Hz): Calm wakefulness • SMR (~12–15 Hz): Smooth, steady focus • Beta (~15–30 Hz): Active thinking and energy • Gamma (~30–40 Hz): Learning and integrative attention Tips • Use stereo headphones for binaural beats. • Start at a low volume and adjust gradually. • Pick a mode for your goal; fine-tune the beat frequency in small steps. Important Sona is not a medical device and does not diagnose or treat any condition. Do not use while driving or performing tasks that require full attention. Craft your sound universe with Sona — and gently guide your mind toward what you want to feel. Auto-Renewable Subscription Terms: •⁠ ⁠The payment will be charged to your Apple ID Account at confirmation of purchase. •⁠ ⁠The subscription renews automatically unless the auto-renew is turned off at least 24 hours before the end of the current billing period. •⁠ ⁠Your account will be charged for renewal within 24 hours before the end of your selected subscription. •⁠ ⁠Your subscriptions can be managed, and auto-renewal can be turned off by going to your App Store Account Settings. Terms: https://eatkdevtermsofuse.carrd.co

Screenshots

Crear QR2 screens
Frequency Generator4 screens

Verdict

The call

The clearest difference is price: Frequency Generator at Free against Crear QR's $0.59. Frequency Generator also leads on update cadence (every 3 weeks vs every 2 months). Crear QR's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.6). On ads and device support 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

Frequency Generator is free to download; Crear QR costs $0.59 up front. Frequency Generator sells 2 in-app purchases, starting at $3.99 per 7 days. Crear QR asks for nothing beyond the download.

UpkeepUpdate frequency

Crear QR ships an update every 2 months, Frequency Generator every 3 weeks. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 5 level
Crear QR versus Frequency Generator: the parameters behind the verdict, then further details
ParameterCrear QRFrequency Generator
Price$0.59Free — better
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.6
Further details — not scored
Size26 MB282 MB
Age rating4+4+
DeveloperJuan Camilo Marin OchoaEmre Atik

In-app purchases

None

Crear QR

No in-app purchases

2 purchases

Frequency Generator

Subscriptions2
  • 3 Days Free Trial Weekly PRO3 Days trial$3.997 Days
  • Sona Annual PRO$19.991 Year

Questions

Is Crear QR free?
Crear QR costs $0.59, with no in-app purchases.
Is Frequency Generator free?
Frequency Generator is free to download, with in-app purchases available.
Do Crear QR or Frequency Generator have ads?
Neither Crear QR nor Frequency Generator shows ads.
Which is updated more often, Crear QR or Frequency Generator?
Crear QR ships an update every 2 months, and Frequency Generator every 3 weeks. Most recently, Crear QR was updated on October 24, 2026 and Frequency Generator on October 11, 2026.

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