Comparison

Protein Viewer Pro vs Protein Sequence Viewer

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

Head to head
About

Protein Viewer Pro

Features
Read full description

Building on our powerful viewer for RCSB Protein Data Bank structures, this release adds a significant new layer of information by integrating data from UniProt. Our goal is to empower protein specialists to seamlessly capture inspiration and engage in discussions with their peers, providing a handy tool for work in the laboratory or even outdoors. We hope you enjoy your protein research anywhere. We're also excited to announce that a "Protein Music" app is in the works! https://heebok.github.io/protein_viewer_manual.html

About

Protein Sequence Viewer

Features
Read full description

Protein Sequence Viewer is an iOS application designed for rapid retrieval of protein sequences (single-letter format) and lengths (amino acids) from UniProtKB/Swiss-Prot (reviewed entries). Simply enter a gene name or UniProt ID (Accession or Entry name) to access the data you need. Key Features: Gene name and UniProt ID search (Swiss-Prot reviewed entries only) Canonical sequence display with isoform switching via dropdown menu Downloadable offline databases for Human, Mouse, Rat, and Yeastβ€”enabling searches without internet connectivity Streamlined interface focused on sequences and lengths One-tap sequence copying to clipboard Data Source: All sequence data is retrieved from UniProt.

Screenshots

Protein Viewer Pro2 screens
Protein Sequence Viewer4 screens

Verdict

The call

The clearest difference is ads: Protein Viewer Pro at none against Protein Sequence Viewer's shown. Protein Sequence Viewer's advantage is update cadence (every 2 days vs every 2 weeks) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Protein Viewer Pro ships an update every 2 weeks, Protein Sequence Viewer every 2 days. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

Scorecard3 real differences Β· 3 level
Protein Viewer Pro versus Protein Sequence Viewer: the parameters behind the verdict, then further details
ParameterProtein Viewer ProProtein Sequence Viewer
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 days β€” better
AdsNo β€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 β€” better
Further details β€” not scored
Size27 MB25 MB
Age rating4+4+
DeveloperHeebok LeeKazunari Sasaki

In-app purchases

None

Protein Viewer Pro

No in-app purchases

None

Protein Sequence Viewer

No in-app purchases

Questions

Is Protein Viewer Pro free?
Protein Viewer Pro is free to download, with no in-app purchases.
Is Protein Sequence Viewer free?
Protein Sequence Viewer is free to download, with no in-app purchases.
Do Protein Viewer Pro or Protein Sequence Viewer have ads?
Protein Sequence Viewer shows ads; Protein Viewer Pro does not.
Which is updated more often, Protein Viewer Pro or Protein Sequence Viewer?
Protein Viewer Pro ships an update every 2 weeks, and Protein Sequence Viewer every 2 days. Most recently, Protein Viewer Pro was updated on October 15, 2026 and Protein Sequence Viewer on October 5, 2026.

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