Comparison

Nano Timer PLUS vs Plasmids X

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

Head to head
About

Nano Timer PLUS

A minimalist countdown timer with both numerical and graphical time displays. This version offers extended time limits, additional visual styles, and features like autorestart for interval training.

Highlights
  • Numerical and graphical time display
  • Up to 999 minutes time limit
  • Two extra display styles (FAT, B&W)
  • Circle animation of total time
  • Count down and count up functions
  • Autorestart for interval training
  • Optional sounds
Features
Read full description

Beautifully designed, minimalist timer with both numerical and graphical representation of time. PLUS version offers two extra styles as well as other important features: PLUS FEATURES: ● No time limit, set up time to 999 minutes. ● Two extra display styles for even greater visibility - FAT and B&W. ● Circle animation of total time option. ● Count down and Count up function. ● Autorestart function, great for interval training. ● Simple and intuitive use. ● Optional sounds to keep you on track!

About

Plasmids X

Design, create, and analyze custom DNA plasmids with this intuitive molecular genetics tool. Supports importing, editing, and sharing plasmids, with powerful in silico analysis features for researchers and students.

Highlights
  • Create plasmids from sequences
  • Import from .dna and Genbank files
  • Edit plasmids by adding features
  • In silico analysis (sequence alignment, PCR, digestion)
  • Share and collaborate on plasmids
Features
Read full description

Plasmids X: Your ultimate plasmid editor! A plasmid is a small circular DNA molecule commonly found in bacteria and some other microorganisms. It exists independently of the organism's chromosomal DNA and can replicate itself within the cell. Scientists frequently use plasmids in genetic engineering and biotechnology, as they are easily manipulated and serve as vehicles for introducing new genes into cells for various purposes including research and the production of useful proteins. Whether you're an expert researcher or just starting in the world of molecular genetics, Plasmids X allows you to design, create, and analyze plasmids effortlessly. Key Features: Create Plasmids: Create plasmids from scratch! Just provide a sequence, in FASTA format or raw sequence, and the app will create a new plasmid and automatically add common DNA features. Alternatively, you can create a new plasmid from smaller DNA fragments from the library embedded in the app (this is a paid feature). Import Plasmids: Import plasmid sequence and features from .dna and Genbank formatted files. Edit Plasmids: Editing plasmids could not be easier! This function of the Plasmids X app allows you to add custom DNA features to an existing plasmid. Powerful Analysis Tools: the Plasmids X app not only allows you to visualize your plasmids, it also enables you to perform critical in silico analysis such as sequence alignment, primer Tm estimation, PCR, and restriction enzyme digestion analysis on your plasmid in seconds! (Some of these are paid features.) Share and Collaborate: Collaborate with your peers by sharing your plasmids with a tap! Whether you're conducting research in molecular biology and genetics or learning the very principles of genetics, the Plasmids X app is here to assist you. Important information: To use enhanced iPad support a monthly or annual subscription is required. Try Enhanced iPad Support free for 3 days. Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://aminmahpour.com/privacy_plasmids.html

Screenshots

Nano Timer PLUS3 screens
Plasmids X4 screens

Verdict

The call

The clearest difference is price: Plasmids X at Free against Nano Timer PLUS's $1.99. Plasmids X also leads on update cadence (monthly vs every 25 months). Nano Timer PLUS's advantage is review sentiment (71% vs 33%) and in-app purchases (none vs 14). On rating, 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

Plasmids X is free to download; Nano Timer PLUS costs $1.99 up front. Plasmids X sells 14 in-app purchases, starting at $1.99 per month. Nano Timer PLUS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.5 for Nano Timer PLUS against 3.4 for Plasmids X. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews are what separate them: 71% of Nano Timer PLUS's written reviews are positive against 33% of Plasmids X's.

UpkeepUpdate frequency

Nano Timer PLUS ships an update every 25 months, Plasmids X monthly. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
Nano Timer PLUS versus Plasmids X: the parameters behind the verdict, then further details
ParameterNano Timer PLUSPlasmids X
Price$1.99Free — better
Rating3.5 (4 ratings) — better3.4 (7 ratings)
Positive reviews71.4% of reviews — better33.3% of reviews
Number of ratings47 — better
Update frequencyEvery 25 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18
Further details — not scored
Size3 MB17 MB
Age rating4+4+
DeveloperIgor DonkovAmin Mahpour

Customer experience

Nano Timer PLUS

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Plasmids X

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Nano Timer PLUS

No in-app purchases

14 purchases

Plasmids X

Subscriptions2
  • Monthly3 Days trial$1.991 Month
  • Yearly3 Days trial$9.991 Year
One-time12
  • A cup of coffee!$1.99
  • Split View Support$1.99
  • Manual Cloning$3.99
Show 9 more
  • In-silico PCR Support$3.99
  • NCBI Entrez Support$3.99
  • Local Alignment Support$3.99
  • A box of joe!$4.99
  • BLAST Support$4.99
  • ApE File Support$4.99
  • Genbank Support$4.99
  • dna File Support$5.99
  • All Features$24.99

Questions

Is Nano Timer PLUS free?
Nano Timer PLUS costs $1.99, with no in-app purchases.
Is Plasmids X free?
Plasmids X is free to download, with in-app purchases available.
Which has better reviews, Nano Timer PLUS or Plasmids X?
Nano Timer PLUS is rated higher. Nano Timer PLUS averages 3.5 out of 5 from 4 ratings, while Plasmids X averages 3.4 from 7 ratings.
Do Nano Timer PLUS or Plasmids X have ads?
Neither Nano Timer PLUS nor Plasmids X shows ads.
Which is updated more often, Nano Timer PLUS or Plasmids X?
Nano Timer PLUS ships an update every 25 months, and Plasmids X monthly. Most recently, Nano Timer PLUS was updated on September 21, 2026 and Plasmids X on June 1, 2026.

Other comparisons