Comparison

DataSieve vs OLM Converter · Viewer, Reader

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

Head to head
About

DataSieve

Instantly transform unstructured text into organized data. Extract emails, dates, URLs, and more from files, folders, or archives with speed and privacy. Supports numerous input and export formats for efficient data analysis and organization.

Highlights
  • Extracts emails, dates, URLs, and more
  • Supports files, folders, and archives
  • Works offline and privately
  • Multiple input formats (TXT, PDF, DOCX, ZIP)
  • Multiple export formats (CSV, JSON, XLSX)
  • Fast and accurate data processing
Features
Read full description

Extract emails, dates, URLs, and more from any text, file, folder, or archive — fast, accurate, and private. DataSieve helps you turn unstructured text into clean, organized data in seconds. Drag & drop files/folders or select archives to extract multiple data types at once — whether analyzing documents, cleaning data, or pulling key info, it works instantly and locally. Perfect for: Developers, analysts, researchers, writers, and anyone who works with text or documents. Supported input formats: Text, JSON, HTML, CSV, XLSX, ODS, Word (DOCX), ODT, PDF, EPUB, ZIP & other archives, folders, and more. Extractable data: Emails, phone numbers, URLs, dates, addresses, hashtags, coordinates, credit card numbers, keywords, file paths, and more. Export options: Copy as text, JSON, or HTML — or export as CSV, XLSX, DOCX, ODS, or ODT. Private by design: DataSieve works entirely offline. No cloud, no tracking, no data sharing — your information never leaves your device. Use cases: - Extract contact info from text, documents, folders, or archives - Parse data from reports, code, logs, PDFs, or EPUBs - Clean and organize batch files for analysis - Collect structured info for research Stop searching by hand — DataSieve finds your data for you. - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://projects.albemala.me/privacy-policy/

About

OLM Converter · Viewer, Reader

Easily open, read, and convert Outlook for Mac archive files (.olm) on your devices. Browse mail, contacts, calendars, and tasks, then export them to various formats like MBOX, PDF, and CSV without needing Outlook.

Highlights
  • Open .olm archives without Outlook
  • Read mail, contacts, calendar, notes, tasks
  • Browse full folder tree
  • Search mail by subject, sender, text
  • Convert to MBOX, EML, PDF, CSV, HTML, vCard, ICS
  • Export entire mailboxes or selected folders
  • Works offline on device
Features
Read full description

Have an OLM file you cannot open? OLM Converter opens Outlook for Mac archives right on your Mac, iPhone, and iPad, lets you read everything inside, and converts it to the formats you actually use. Open a .olm export, browse every folder, and read your mail, contacts, calendar, notes, and tasks. Then convert and export the parts you need, all on your device. WHAT YOU CAN DO • Open and read .olm archives from Outlook for Mac, no Outlook needed • Browse the full folder tree, and search mail by subject, sender, or text • View contacts, calendar events, notes, and tasks • See every attachment and save it to Files • Convert and export to MBOX, EML, CSV, PDF, HTML, vCard, and ICS • Export a whole mailbox, or just the folder you choose EXPORT FORMATS • MBOX, or a zipped folder tree of MBOX files • EML, one message per file, with the folder structure preserved • PDF for reading and sharing • CSV of the message list • A browsable HTML archive • vCard (.vcf) contacts and ICS (.ics) calendar events BUILT RIGHT • Runs on Mac, iPhone, and iPad • Everything happens on your device. Your archive never leaves it • No account, no sign in, nothing is uploaded • Handles large, multi gigabyte archives • Fast, reliable, and faithful to the original PERFECT FOR • Opening an .olm file on your Mac without Outlook • Anyone moving away from Outlook for Mac • Moving your mail into another app that reads MBOX or EML, such as Apple Mail or Thunderbird • Archiving, exporting, or simply reading an old .olm file OLM Converter is an independent app and is not affiliated with, endorsed by, or sponsored by any email software vendor. OLM and Outlook are referenced only to indicate the file format the app works with. Privacy Policy: https://rush.tools/privacy Terms of Use: https://rush.tools/terms

Screenshots

DataSieve4 screens
OLM Converter · Viewer, Reader4 screens

Verdict

The call

The clearest difference is update cadence: OLM Converter · Viewer, Reader at every 5 days against DataSieve's every 3 weeks. On price, ads, in-app purchases and monetization model 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. DataSieve sells 2 in-app purchases, starting at $2.99 per 7 days and OLM Converter · Viewer, Reader sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DataSieve ships an update every 3 weeks, OLM Converter · Viewer, Reader every 5 days. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

Scorecard1 real difference · 9 level
DataSieve versus OLM Converter · Viewer, Reader: the parameters behind the verdict, then further details
ParameterDataSieveOLM Converter · Viewer, Reader
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Mac
Requires iOS15.615.0 — better
Further details — not scored
Size91 MB24 MB
Age rating4+4+
DeveloperAlberto MalagoliRush Tools LLC

Customer experience

DataSieve

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

OLM Converter · Viewer, Reader

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

2 purchases

DataSieve

Subscriptions1
  • Access for a week$2.997 Days
One-time1
  • Lifetime access$14.99
3 purchases

OLM Converter · Viewer, Reader

Subscriptions2
  • Pro Weekly$4.997 Days
  • Pro Annual$39.991 Year
One-time1
  • Pro Lifetime$59.99

Questions

Is DataSieve free?
DataSieve is free to download, with in-app purchases available.
Is OLM Converter · Viewer, Reader free?
OLM Converter · Viewer, Reader is free to download, with in-app purchases available.
Do DataSieve or OLM Converter · Viewer, Reader have ads?
Neither DataSieve nor OLM Converter · Viewer, Reader shows ads.
Which is updated more often, DataSieve or OLM Converter · Viewer, Reader?
DataSieve ships an update every 3 weeks, and OLM Converter · Viewer, Reader every 5 days. Most recently, DataSieve was updated on October 10, 2026 and OLM Converter · Viewer, Reader on October 18, 2026.

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