Comparison

ConcreteDNA vs Highlight PDF

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

Head to head
About

ConcreteDNA

Monitor concrete strength and temperature in real-time with sensor data sent directly to the cloud. Access live site data from anywhere, receive instant alerts, and generate QA reports for simplified paperwork. Supports collection from Converge Signal sensors.

Highlights
  • Live concrete strength feedback
  • Instant action alerts
  • Cloud access for teams
  • Temperature monitoring
  • QA report generation
  • Converge Signal sensor support
Features
Read full description

Converge sensors generate realtime strength and temperature measurements of concrete, which our system returns directly to the cloud, meaning you always have access to live data about your site, anytime, anywhere. The app now supports collection of measurements from Converge Signal sensors. - Live feedback on concrete strength - Instant alerts to help you take action precisely when it's needed - Cloud access, for you and your whole team from the site office, or HQ - Temperature monitoring to help you stay in spec. - QA reports to simplify paperwork

About

Highlight PDF

Features
Read full description

Highlight, annotate, and organize your PDF documents effortlessly with **PDF Highlighter & Annotator** — the powerful tool designed for students, professionals, researchers, and everyday users who work with PDFs daily. Whether you're studying lecture notes, reviewing contracts, preparing reports, reading eBooks, or marking important sections in documents, this app makes highlighting text fast, accurate, and seamless. Instantly select and highlight text in PDF files using multiple vibrant colors to keep your notes organized and easy to review. Add clear annotations, emphasize key points, and improve your productivity with smooth and precise text selection tools built for speed and simplicity. Perfect for: • Studying and reviewing class notes • Research papers and academic documents • Business contracts and reports • eBooks and digital documents • Team collaboration and document feedback Features: • Multiple highlight colors for better organization • Accurate and smooth PDF text selection • Fast PDF loading and responsive performance • Simple and clean interface for easy navigation • Annotate important sections in seconds • Optimized for students, teachers, researchers, and professionals Whether you're preparing for exams, managing work documents, or organizing research materials, PDF Highlighter & Annotator gives you the essential tools to read, mark, and review PDFs more efficiently. Subscription Details: • Title: Savory All Access • Length: 1 year • Price: $39.99 per year and $7.99 per month (auto-renews) • Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ • Privacy Policy: https://docs.google.com/document/d/1b2FQZ_HK2I_6ZBJhiaJw_Vii5aKW9D4dYjGfP9C8efU/edit?usp=sharing

Screenshots

ConcreteDNA4 screens
Highlight PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: ConcreteDNA at none against Highlight PDF's 3. ConcreteDNA also leads on update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement 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. Highlight PDF sells 3 in-app purchases, starting at $7.99 per month. ConcreteDNA asks for nothing beyond the download.

UpkeepUpdate frequency

ConcreteDNA ships an update fortnightly, Highlight PDF every 4 months. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
ConcreteDNA versus Highlight PDF: the parameters behind the verdict, then further details
ParameterConcreteDNAHighlight PDF
PriceFreeFree
Rating4.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.6
Further details — not scored
Size34 MB24 MB
Age rating4+4+
DeveloperConvergeFenuku Kekeli

In-app purchases

None

ConcreteDNA

No in-app purchases

3 purchases

Highlight PDF

Subscriptions2
  • All Access for a month$7.991 Month
  • All Access for a year$39.991 Year
One-time1
  • All Access to Lifetime$99.99

Questions

Is ConcreteDNA free?
ConcreteDNA is free to download, with no in-app purchases.
Is Highlight PDF free?
Highlight PDF is free to download, with in-app purchases available.
Do ConcreteDNA or Highlight PDF have ads?
Neither ConcreteDNA nor Highlight PDF shows ads.
Which is updated more often, ConcreteDNA or Highlight PDF?
ConcreteDNA ships an update fortnightly, and Highlight PDF every 4 months. Most recently, ConcreteDNA was updated on October 6, 2026 and Highlight PDF on October 28, 2026.

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