IDrive e2 vs Backblaze B2
A comparison of IDrive e2 and Backblaze B2 built from values read directly from each provider's own documentation, with the source recorded against every figure.
The short answer
- Pick IDrive e2 if
- Bulk storage where the per-GB rate dominates — $6 per TB is roughly a quarter of S3's and well under Wasabi's, with no API fees and no minimum retention period.
- Pick Backblaze B2 if
- Bulk capacity where egress is predictable — free up to three times what you store each month, which covers most backup and archive patterns comfortably at $6.95 per terabyte.
5 sourced criteria separate them:
- Egress over allowance
- IDrive e2: Free up to three times your active storage volume each month — the same shape as Backblaze B2's allowance rather than the unconditional free egress R2 and Wasabi advertise.
- Backblaze B2: Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable.
- Storage (entry plan)
- IDrive e2: None on a paid account. IDrive e2 bills a minimum of $6 per TB charged per whole terabyte, so storing under 1 TB still costs a full terabyte — a floor on the bill rather than storage you are given. A 10 GB free trial is offered separately.
- Backblaze B2: 10 GB free, permanently — 'First 10GB storage is always free.' The statement is a row-level note on Backblaze's pricing-model table, so it applies to B2 storage rather than to one plan, and it is an ongoing allowance rather than the 'Start Free' trial the page advertises separately.
- Storage price
- IDrive e2: $0.006 per GB per month, or $6 per TB, tierless — the cheapest published rate here. SSD storage is $0.01 per GB per month.
- Backblaze B2: $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier
- Operations price
- IDrive e2: None. IDrive e2 states no additional charges for API transactions across class A, B and C.
- Backblaze B2: Transactions are not charged on the $6.95/TB tier. Backblaze notes that its published chart uses U.S. West rates and that competitor rates vary by region and volume.
- Minimum storage duration
- IDrive e2: None. IDrive e2 states no minimum data retention restriction, unlike Wasabi's 90 days and the S3 infrequent-access classes' 30 to 180.
- Backblaze B2: None. Backblaze states no minimum file size or storage duration fee on B2 Cloud Storage, so an object deleted an hour after upload is billed only for that hour.
Pick the criteria you care about. The chart counts how many of them lean toward each provider — the same read as scanning the bars below, just totalled for the ones you chose.
IDrive e2 0
Backblaze B2 0
At a glance.
| Criterion | IDrive e2 | Backblaze B2 |
|---|---|---|
| Pricing | ||
| Egress over allowance | Free up to three times your active storage volume each month — the same shape as Backblaze B2's allowance rather than the unconditional free egress R2 and Wasabi advertise. | Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable. |
| Limits | ||
| Storage (entry plan) | None on a paid account. IDrive e2 bills a minimum of $6 per TB charged per whole terabyte, so storing under 1 TB still costs a full terabyte — a floor on the bill rather than storage you are given. A 10 GB free trial is offered separately. | 10 GB free, permanently — 'First 10GB storage is always free.' The statement is a row-level note on Backblaze's pricing-model table, so it applies to B2 storage rather than to one plan, and it is an ongoing allowance rather than the 'Start Free' trial the page advertises separately. |
| Storage | ||
| Storage price | $0.006 per GB per month, or $6 per TB, tierless — the cheapest published rate here. SSD storage is $0.01 per GB per month. | $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier |
| Operations price | None. IDrive e2 states no additional charges for API transactions across class A, B and C. | Transactions are not charged on the $6.95/TB tier. Backblaze notes that its published chart uses U.S. West rates and that competitor rates vary by region and volume. |
| Minimum storage duration | None. IDrive e2 states no minimum data retention restriction, unlike Wasabi's 90 days and the S3 infrequent-access classes' 30 to 180. | None. Backblaze states no minimum file size or storage duration fee on B2 Cloud Storage, so an object deleted an hour after upload is billed only for that hour. |
| S3-compatible API | Supported | Supported |
Where they differ.
Egress over allowance
- IDrive e2
- Free up to three times your active storage volume each month — the same shape as Backblaze B2's allowance rather than the unconditional free egress R2 and Wasabi advertise.
- Backblaze B2
- Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable.
Sources (2) →Sources ↓
- Pricing — IDrive e2 ↗
“Free egress policy Download less than or equal to 3X your active storage volume for free!”
Read 2026-09-06 · official pricing
- Cloud Storage Pricing — Backblaze ↗
“Free egress up to 3x storage [...] Free transactions [...] Unlimited free egress [...] B2 includes 750 TB of monthly egress in this scenario.”
Read 2026-09-06 · official pricing
Storage (entry plan)
None on a paid account. IDrive e2 bills a minimum of $6 per TB charged per whole terabyte, so storing under 1 TB still costs a full terabyte — a floor on the bill rather than storage you are given. A 10 GB free trial is offered separately.
10 GB free, permanently — 'First 10GB storage is always free.' The statement is a row-level note on Backblaze's pricing-model table, so it applies to B2 storage rather than to one plan, and it is an ongoing allowance rather than the 'Start Free' trial the page advertises separately.
Sources (2) →Sources ↓
- Pricing — IDrive e2 ↗
“IDrive e2 charges a minimum storage fee of $6/TB. The minimum charge is per TB; even if your total storage is less than 1 TB, you will be charged for a full TB”
Read 2026-09-06 · official pricing
- B2 Cloud Storage Pricing | Backblaze ↗
“First 10GB storage is always free.”
Read 2026-09-07 · official pricing
Storage price
- IDrive e2
- $0.006 per GB per month, or $6 per TB, tierless — the cheapest published rate here. SSD storage is $0.01 per GB per month.
- Backblaze B2
- $6.95 per TB per month on B2 Overdrive; $15 per TB per month on the unlimited-egress tier
Sources (2) →Sources ↓
- Pricing — IDrive e2 ↗
“Straight-forward and tierless pricing $0.006/GB per month ($6/TB per month) [...] $0.01/GB per month (SSD Storage)”
Read 2026-09-06 · official pricing
- Cloud Storage Pricing — Backblaze ↗
“$6.95 / TB / mo [...] Free egress up to 3x storage [...] $15 / TB / mo [...] Unlimited free egress”
Read 2026-09-06 · official pricing
Operations price
- IDrive e2
- None. IDrive e2 states no additional charges for API transactions across class A, B and C.
- Backblaze B2
- Transactions are not charged on the $6.95/TB tier. Backblaze notes that its published chart uses U.S. West rates and that competitor rates vary by region and volume.
Sources (2) →Sources ↓
- Pricing — IDrive e2 ↗
“Free API Calls IDrive e2 does not impose any additional charges [...] No Fees for API transactions class A, B, C”
Read 2026-09-06 · official pricing
- Cloud Storage Pricing — Backblaze ↗
“Free transactions [...] This chart features published rates for the U.S. West region. Backblaze competitors' rates can vary by region, amount stored, and other factors.”
Read 2026-09-06 · official pricing
Minimum storage duration
- IDrive e2
- None. IDrive e2 states no minimum data retention restriction, unlike Wasabi's 90 days and the S3 infrequent-access classes' 30 to 180.
- Backblaze B2
- None. Backblaze states no minimum file size or storage duration fee on B2 Cloud Storage, so an object deleted an hour after upload is billed only for that hour.
Sources (2) →Sources ↓
- Pricing — IDrive e2 ↗
“No restrictions of minimum data retention Free ingress and egress No additional charges”
Read 2026-09-06 · official pricing
- Pricing — Backblaze B2 Cloud Storage ↗
“$6.95 / TB / mo [...] No minimum file size or storage duration fees Free egress up to 3x storage Free transactions”
Read 2026-09-07 · official pricing
When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.
Which should you choose?
Choose IDrive e2 if…
Bulk storage where the per-GB rate dominates — $6 per TB is roughly a quarter of S3's and well under Wasabi's, with no API fees and no minimum retention period.
Editorial · Palash Bagchi · approved
Choose Backblaze B2 if…
Bulk capacity where egress is predictable — free up to three times what you store each month, which covers most backup and archive patterns comfortably at $6.95 per terabyte.
Editorial · Palash Bagchi · approved
Consider something else if…
- IDrive e2: The minimum charge is billed per whole terabyte, so a 100 GB workload pays for 1 TB, and egress is only free up to three times what you store.
- Backblaze B2: Egress is only free to that 3x ceiling. A bucket read far more often than its size, like a public media library, is the shape this pricing is not built for.
Documented by only one.
These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing.
Questions this comparison answers.
Egress over allowance: IDrive e2 or Backblaze B2?
IDrive e2: Free up to three times your active storage volume each month — the same shape as Backblaze B2's allowance rather than the unconditional free egress R2 and Wasabi advertise.
Backblaze B2: Free up to three times your stored capacity each month on the $6.95/TB tier; unlimited free egress on the $15/TB tier. Egress beyond the 3x allowance is chargeable.
Storage (entry plan): IDrive e2 or Backblaze B2?
IDrive e2: None on a paid account. IDrive e2 bills a minimum of $6 per TB charged per whole terabyte, so storing under 1 TB still costs a full terabyte — a floor on the bill rather than storage you are given. A 10 GB free trial is offered separately.
Backblaze B2: 10 GB free, permanently — 'First 10GB storage is always free.' The statement is a row-level note on Backblaze's pricing-model table, so it applies to B2 storage rather than to one plan, and it is an ongoing allowance rather than the 'Start Free' trial the page advertises separately.
Should I choose IDrive e2 or Backblaze B2?
Pick IDrive e2 if Bulk storage where the per-GB rate dominates — $6 per TB is roughly a quarter of S3's and well under Wasabi's, with no API fees and no minimum retention period.
Pick Backblaze B2 if Bulk capacity where egress is predictable — free up to three times what you store each month, which covers most backup and archive patterns comfortably at $6.95 per terabyte.