Comparison

ELSB Lite vs Classroom Noise Meter

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

Head to head
About

ELSB Lite

This app provides systematic instruction for print and phonemic awareness, featuring seven levels and ongoing assessments for personalized student progress. Research supports its effectiveness as a literacy program.

Highlights
  • Systematic print and phonemic awareness instruction
  • Seven distinct learning levels
  • Ongoing student assessments
  • Personalized progress tracking
  • Research-backed effectiveness
Read full description

The Early Literacy Skills Builder app incorporates systematic instruction to teach both print and phonemic awareness. ELSB is a multi-year program with seven distinct levels and ongoing assessments so students progress at their own pace. Note: This free version comes with level 1 - Lesson 1 and Level 5 - lesson 1. Full levels can be purchased from the in-app store. Five years of solid research have been completed through the University of North Carolina at Charlotte, proving ELSB to be a highly effective literacy program and more effective than a sight-word only program. ELSB is based upon the principles of systematic and direct instruction. It incorporates scripted lessons, least-prompt strategies, teachable objectives, built-in lesson repetition, and ongoing assessments. The seven ELSB levels contain five structured lessons each. All students begin at Level 1. Instruction is one-on-one or in small groups. Teach scripted lessons daily in two 30-minute sessions. On the completion of each level, formal assessments are given. ELSB includes everything you need to implement a multi-year literacy curriculum.

About

Classroom Noise Meter

Features
Read full description

Ruhe turns your iPad or iPhone into a friendly noise light for the classroom. A cheerful mascot shows at a glance how loud the room is – and quiet work gets rewarded instead of noise getting punished. HOW IT WORKS • Green: the mascot smiles – nice and quiet. • Yellow: it gently says “shh” – a little quieter, please. • Red: it covers its ears – and the flames go out. COLLECT FLAMES While the class stays quiet, one flame after another lights up around the mascot. Twelve flames complete the ring – time to celebrate! If it gets too loud, all flames go out. Only positive feedback, no scolding. MADE FOR LESSONS • Timer with ring display and start/stop button • Projector view: show the noise light full screen on a second display while you keep the controls • Adjustable sensitivity, or automatic calibration in 5 seconds • Lock the controls with Face ID so nobody in class changes anything • Light and dark appearance, screen stays on PRIVATE BY DESIGN Ruhe only measures the volume. Nothing is recorded, stored or sent. No account, no ads, no tracking. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://crabucate.de/ruhe-privacy.html

Screenshots

Classroom Noise Meter4 screens

Verdict

The call

The clearest difference is update cadence: Classroom Noise Meter at every 2 weeks against ELSB Lite's every 2 months. ELSB Lite's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases 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

Both are free to download. ELSB Lite sells 7 one-off in-app purchases and Classroom Noise Meter sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ELSB Lite ships an update every 2 months, Classroom Noise Meter every 2 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
ELSB Lite versus Classroom Noise Meter: the parameters behind the verdict, then further details
ParameterELSB LiteClassroom Noise Meter
PriceFreeFree
Rating4.8 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPadiPhone, iPad — better
Requires iOS13.0 — better17.0
Further details — not scored
Size236 MB18 MB
Age rating4+4+
DeveloperAttainment CompanyFelix Leitenberger

In-app purchases

7 purchases

ELSB Lite

One-time7
  • Level 1$21.99
  • Level 2$21.99
  • Level 3$21.99
Show 4 more
  • Level 4$21.99
  • Level 5$21.99
  • Level 6$21.99
  • Level 7$21.99
3 purchases

Classroom Noise Meter

Subscriptions2
  • Ruhe Pro – Monthly3 Days trial$1.991 Month
  • Ruhe Pro – Yearly7 Days trial$8.991 Year
One-time1
  • Ruhe Pro – Lifetime$22.99

Questions

Is ELSB Lite free?
ELSB Lite is free to download, with in-app purchases available.
Is Classroom Noise Meter free?
Classroom Noise Meter is free to download, with in-app purchases available.
Do ELSB Lite or Classroom Noise Meter have ads?
Neither ELSB Lite nor Classroom Noise Meter shows ads.
Which is updated more often, ELSB Lite or Classroom Noise Meter?
ELSB Lite ships an update every 2 months, and Classroom Noise Meter every 2 weeks. Most recently, ELSB Lite was updated on November 1, 2026 and Classroom Noise Meter on November 6, 2026.

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