Comparison

BDI vs SLK Curriculum

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

Head to head
About

BDI

This application assists in administering clinical assessments for child development. It offers guided digital support for scoring, timers, and reporting, functioning both online and offline. Users can manage student data and sync assessments for web-based access.

Highlights
  • Online and offline assessment administration
  • Guided digital scoring assistance
  • Basal and ceiling indicators
  • Built-in timers
  • Modular reporting options
  • Student data management
Features
Read full description

BDI-3 Mobile Data Solution (MDS) is an online and offline application to assist with the administration of the Battelle® Developmental Inventory 3rd Edition™ suite of products. The Battelle Developmental Complete, BDI-3 Screening Test, and the Battelle Early Academic Survey are clinical assessments that may be assessed through the BDI-3 MDS. The application provides guided digital assistance with the administration of each of the three products. The guided digital assistance includes basal and ceiling indicators, tallied scoring, built in timers, scoring rubrics, and modular reporting options. Within the application the user will be able to add students, administer all three types of BDI-3 assessments, and run reports both online and offline. It also allows the user to sync mobile record forms that they can then access on the riversidescore.com website.

About

SLK Curriculum

This comprehensive speech and language therapy curriculum helps children make faster progress with less stress for adults. It offers a streamlined system for planning, teaching, and tracking communication skills, with customizable modules and AI-powered tools for creating practice materials.

Highlights
  • Assessment tool for skill pinpointing
  • Customizable curriculum modules
  • Year-long mentorship program
  • Core Language Program (K-5)
  • AI-powered material generators
  • Private discussion board & support group
  • 50+ in-depth courses
Features
Read full description

The SLK Curriculum is the first-ever complete curriculum for speech and language therapy—designed to help children make faster progress in less time while reducing the stress and workload for the adults supporting them. Whether you are a speech-language pathologist (SLP), speech-language therapy assistant (SLPA), caregiver, teacher, or educator, this app gives you a fully streamlined system to plan, teach, and track communication skills with confidence. Our simple, step-by-step approach removes the guesswork and wasted hours of planning, so you can focus on what matters most—helping children thrive. Every part of the curriculum is customizable to match an individual’s skill level and needs, making it easy to use with children of all ages and abilities. Inside the app, you’ll get: • A powerful assessment tool to pinpoint skills and guide your therapy plan. • All curriculum modules for speech, language, social communication, functional communication, fluency, and voice—fully adaptable for each learner. • A year-long mentorship program with separate tracks for established SLPs/SaLTs, new SLPs/CFYs, SLPAs, parents/caregivers, and teachers/educators—so every user has targeted support. • Our Core Language Program, a 16-week oral language intervention for grades K–5, developed to boost comprehension, vocabulary, and expressive skills. • Sample goals for every area to make documentation and progress tracking faster and easier. Your curriculum access also includes these bonuses: • Private Discussion Board & Support Group – Connect with others using the curriculum, share ideas, and get help. • 50+ In-Depth Courses – Learn practical strategies for specific communication skills and conditions. • Organization & Admin Tools – Streamline your paperwork, scheduling, and planning so you can spend less time behind a desk. • AI-Powered Material Generators – Instantly create unlimited custom practice materials for any skill you’re targeting. With the SLK Curriculum, you’ll stop feeling overwhelmed by scattered materials and last-minute prep. Instead, you’ll have a clear roadmap, ready-to-use therapy plans, and a community of support at your fingertips. This is your all-in-one solution to make speech and language teaching more effective, less stressful, and more rewarding—for you and for the children you serve. ----- Terms of Use: mightynetworks.com/terms-of-use

Screenshots

SLK Curriculum4 screens

Verdict

The call

The clearest difference is rating: SLK Curriculum at 4.6 against BDI's 2.3. SLK Curriculum also leads on update cadence (weekly vs every 2 months). BDI's advantage is in-app purchases (none vs 22) and iOS requirement (13.0 vs 17.0). On price, ratings volume, 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

Both are free to download. SLK Curriculum sells 16 in-app purchases, starting at $25.99 per month. BDI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SLK Curriculum holds the better App Store score, 4.6 against 2.3. Both are backed by a comparable volume of ratings — 6 and 9 respectively.

UpkeepUpdate frequency

BDI ships an update every 2 months, SLK Curriculum weekly. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
BDI versus SLK Curriculum: the parameters behind the verdict, then further details
ParameterBDISLK Curriculum
PriceFreeFree
Rating2.3 (6 ratings)4.6 (9 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings69 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad — better
Requires iOS13.0 — better17.0
Further details — not scored
Size208 MB127 MB
Age rating4+9+
DeveloperRiversideInsightsSpeech and Language Kids

Customer experience

BDI

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%

SLK Curriculum

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

BDI

No in-app purchases

16 purchases

SLK Curriculum

Subscriptions10
  • Monthly Plan1 Year trial2 variants$25.991 Month
  • Monthly Plan1 Month trial$25.991 Month
  • Monthly Plan6 Months trial$25.991 Month
Show 7 more
  • Monthly Plan7 Days trial2 variants$25.991 Month
  • Monthly Plan7 Days trial2 variants$49.991 Month
  • Annual Plan1 Month trial$259.991 Year
  • Annual Plan6 Months trial$259.991 Year
  • Annual Plan7 Days trial2 variants$259.991 Year
  • Annual Plan1 Year trial2 variants$259.991 Year
  • Annual Plan7 Days trial$499.991 Year
One-time6
  • One Time Purchase Plan2 variants$79.99
  • One Time Purchase Plan$99.99
  • One Time Purchase Plan$349.99
Show 3 more
  • One Time Purchase Plan$449.99
  • One Time Purchase Plan$499.99
  • One Time Purchase Plan$799.99

Questions

Is BDI free?
BDI is free to download, with no in-app purchases.
Is SLK Curriculum free?
SLK Curriculum is free to download, with in-app purchases available.
Which has better reviews, BDI or SLK Curriculum?
SLK Curriculum is rated higher. BDI averages 2.3 out of 5 from 6 ratings, while SLK Curriculum averages 4.6 from 9 ratings.
Do BDI or SLK Curriculum have ads?
Neither BDI nor SLK Curriculum shows ads.
Which is updated more often, BDI or SLK Curriculum?
BDI ships an update every 2 months, and SLK Curriculum weekly. Most recently, BDI was updated on October 5, 2026 and SLK Curriculum on October 6, 2026.

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