Comparison

Sphere2 vs ELSB Lite

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

Head to head
About

Sphere2

This app transforms your iPad into a digital whiteboard, integrating live video from a wireless camera with lesson creation tools. Record and instantly upload lessons to the cloud for sharing with students or for review.

Highlights
  • Live video integration with wireless camera
  • Digital whiteboard for lesson creation
  • Annotation and drawing tools
  • Lesson recording
  • Cloud upload for recorded lessons
Features
Read full description

AVer Sphere2 App when used in conjunction with the AVer wireless camera is the first and only iPad digital whiteboard solution that integrates live video with lesson creation tools. You can even record Sphere2 lessons and upload them instantly to the cloud. When used without the camera, the App provides robust digital whiteboard functionalities for lesson creation and presentation. - Using AVer’s Wireless Cam stream live video of artifacts, experiments and more directly to the Sphere2 iPad App - Enhance the live video with notes, annotations, text, drawings and images to relay important aspects - Use the built-in whiteboard mode for step-by-step instructions and other content - With one click, record the entire lesson including video, annotation and other content - Automatically upload the recorded videos to the cloud (Dropbox®, YouTube®, Facebook®, Google Drive®, etc.) to send to absent students, substitute teachers or for review Visit averusa.com/education to learn more about Sphere2 as well as AVer’s other award-winning educational solutions.

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.

Verdict

The call

The clearest difference is review sentiment: Sphere2 at 100% against ELSB Lite's 50%. Sphere2 also leads on in-app purchases (none vs 7) and iOS requirement (9.3 vs 13.0). ELSB Lite's advantage is rating (4.8 vs 4.5). On price, ratings volume, update cadence and 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

Both are free to download. ELSB Lite sells 7 one-off in-app purchases. Sphere2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ELSB Lite holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews complicate that: 100% of Sphere2's written reviews are positive against 50% of ELSB Lite's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 1, 2026.

Scorecard5 real differences · 5 level
Sphere2 versus ELSB Lite: the parameters behind the verdict, then further details
ParameterSphere2ELSB Lite
PriceFreeFree
Rating4.5 (2 ratings)4.8 (4 ratings) — better
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings24 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPad
Requires iOS9.3 — better13.0
Further details — not scored
Size36 MB236 MB
Age rating17+4+
DeveloperAVer Information Inc.Attainment Company

Customer experience

Sphere2

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ELSB Lite

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

Sphere2

No 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

Questions

Is Sphere2 free?
Sphere2 is free to download, with no in-app purchases.
Is ELSB Lite free?
ELSB Lite is free to download, with in-app purchases available.
Which has better reviews, Sphere2 or ELSB Lite?
ELSB Lite is rated higher. Sphere2 averages 4.5 out of 5 from 2 ratings, while ELSB Lite averages 4.8 from 4 ratings.
Do Sphere2 or ELSB Lite have ads?
Neither Sphere2 nor ELSB Lite shows ads.
Which is updated more often, Sphere2 or ELSB Lite?
Sphere2 ships an update every 2 months, and ELSB Lite every 2 months. Most recently, Sphere2 was updated on November 1, 2026 and ELSB Lite on November 1, 2026.

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